6155343900 has 180 divisors, whose sum is σ = 20005103272. Its totient is φ = 1637159040.

The previous prime is 6155343889. The next prime is 6155343913. The reversal of 6155343900 is 93435516.

6155343900 is a `hidden beast` number, since 61 + 553 + 43 + 9 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 4235574 + ... + 4237026.

Almost surely, 2^6155343900 is an apocalyptic number.

6155343900 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 6155343900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10002551636).

6155343900 is an abundant number, since it is smaller than the sum of its proper divisors (13849759372).

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

6155343900 is a wasteful number, since it uses less digits than its factorization.

6155343900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002 (or 1986 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 6155343900 is about 78455.9997705720. Note that the first 3 decimals coincide. The cubic root of 6155343900 is about 1832.6693106717.

Adding to 6155343900 its sum of digits (36), we get a square (6155343936 = 78456²).

The spelling of 6155343900 in words is "six billion, one hundred fifty-five million, three hundred forty-three thousand, nine hundred".