156556056116605 has 32 divisors (see below), whose sum is σ = 200979088966656. Its totient is φ = 116656404946944.

The previous prime is 156556056116587. The next prime is 156556056116609. The reversal of 156556056116605 is 506611650655651.

It is a cyclic number.

It is not a de Polignac number, because 156556056116605 - 2¹⁹ = 156556055592317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 156556056116605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156556056116609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167129052 + ... + 168063178.

It is an arithmetic number, because the mean of its divisors is an integer number (6280596530208).

Almost surely, 2^{156556056116605} is an apocalyptic number.

It is an amenable number.

156556056116605 is a deficient number, since it is larger than the sum of its proper divisors (44423032850051).

156556056116605 is a wasteful number, since it uses less digits than its factorization.

156556056116605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954573.

The product of its (nonzero) digits is 24300000, while the sum is 58.

The spelling of 156556056116605 in words is "one hundred fifty-six trillion, five hundred fifty-six billion, fifty-six million, one hundred sixteen thousand, six hundred five".