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16216554045 = 351942355661
BaseRepresentation
bin11110001101001010…
…01111101000111101
31112212011022022002210
433012211033220331
5231202414212140
611241053011033
71112601302136
oct170645175075
945764268083
1016216554045
11697190508a
123186a83a79
1316b58b8313
14adba22c8d
1564da1ed80
hex3c694fa3d

16216554045 has 16 divisors (see below), whose sum is σ = 25948288512. Its totient is φ = 8648228160.

The previous prime is 16216554043. The next prime is 16216554047. The reversal of 16216554045 is 54045561261.

It is an interprime number because it is at equal distance from previous prime (16216554043) and next prime (16216554047).

It is not a de Polignac number, because 16216554045 - 21 = 16216554043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16216553994 and 16216554012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16216554043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263515 + ... + 319175.

It is an arithmetic number, because the mean of its divisors is an integer number (1621768032).

Almost surely, 216216554045 is an apocalyptic number.

16216554045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16216554045 is a deficient number, since it is larger than the sum of its proper divisors (9731734467).

16216554045 is a wasteful number, since it uses less digits than its factorization.

16216554045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75092.

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 16216554045 in words is "sixteen billion, two hundred sixteen million, five hundred fifty-four thousand, forty-five".

Divisors: 1 3 5 15 19423 55661 58269 97115 166983 278305 291345 834915 1081103603 3243310809 5405518015 16216554045