6156510001656 has 64 divisors (see below), whose sum is σ = 17591833862400. Its totient is φ = 1758822329088.

The previous prime is 6156510001627. The next prime is 6156510001661. The reversal of 6156510001656 is 6561000156516.

It is a super-2 number, since 2×6156510001656² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234430 + ... + 3516813.

It is an arithmetic number, because the mean of its divisors is an integer number (274872404100).

Almost surely, 2^{6156510001656} is an apocalyptic number.

It is an amenable number.

6156510001656 is an abundant number, since it is smaller than the sum of its proper divisors (11435323860744).

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

6156510001656 is a wasteful number, since it uses less digits than its factorization.

6156510001656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3761028 (or 3761024 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 6156510001656 in words is "six trillion, one hundred fifty-six billion, five hundred ten million, one thousand, six hundred fifty-six".