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6161400000 = 2633557163
BaseRepresentation
bin1011011110011111…
…11000000011000000
3120220101202112212000
411233033320003000
5100104304300000
62455220104000
7305454015210
oct55717700300
916811675760
106161400000
112681a4a018
12123b535000
13772659822
14426424240
15260dba000
hex16f3f80c0

6161400000 has 672 divisors, whose sum is σ = 26033333760. Its totient is φ = 1399680000.

The previous prime is 6161399989. The next prime is 6161400013. The reversal of 6161400000 is 41616.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 37799919 + ... + 37800081.

It is an arithmetic number, because the mean of its divisors is an integer number (38740080).

Almost surely, 26161400000 is an apocalyptic number.

6161400000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6161400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13016666880).

6161400000 is an abundant number, since it is smaller than the sum of its proper divisors (19871933760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6161400000 is an equidigital number, since it uses as much as digits as its factorization.

6161400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 6161400000 is about 78494.5858005506. The cubic root of 6161400000 is about 1833.2701539293.

Adding to 6161400000 its reverse (41616), we get a palindrome (6161441616).

The spelling of 6161400000 in words is "six billion, one hundred sixty-one million, four hundred thousand".