155660656650 has 48 divisors (see below), whose sum is σ = 399350109600. Its totient is φ = 40078144960.

The previous prime is 155660656643. The next prime is 155660656663. The reversal of 155660656650 is 56656066551.

It is a junction number, because it is equal to n+sod(n) for n = 155660656593 and 155660656602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17887680 + ... + 17896379.

It is an arithmetic number, because the mean of its divisors is an integer number (8319793950).

Almost surely, 2^155660656650 is an apocalyptic number.

155660656650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155660656650 is an abundant number, since it is smaller than the sum of its proper divisors (243689452950).

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

155660656650 is a wasteful number, since it uses less digits than its factorization.

155660656650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35784103 (or 35784098 counting only the distinct ones).

The product of its (nonzero) digits is 4860000, while the sum is 51.

The spelling of 155660656650 in words is "one hundred fifty-five billion, six hundred sixty million, six hundred fifty-six thousand, six hundred fifty".