156600666656 has 24 divisors (see below), whose sum is σ = 352351500480. Its totient is φ = 67114571328.

The previous prime is 156600666641. The next prime is 156600666671. The reversal of 156600666656 is 656666006651.

It is an interprime number because it is at equal distance from previous prime (156600666641) and next prime (156600666671).

It is a junction number, because it is equal to n+sod(n) for n = 156600666598 and 156600666607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349554836 + ... + 349555283.

It is an arithmetic number, because the mean of its divisors is an integer number (14681312520).

Almost surely, 2^156600666656 is an apocalyptic number.

156600666656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

156600666656 is an abundant number, since it is smaller than the sum of its proper divisors (195750833824).

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

156600666656 is an equidigital number, since it uses as much as digits as its factorization.

156600666656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699110136 (or 699110128 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 53.

The spelling of 156600666656 in words is "one hundred fifty-six billion, six hundred million, six hundred sixty-six thousand, six hundred fifty-six".