156665100056 has 16 divisors (see below), whose sum is σ = 293972521200. Its totient is φ = 78272427744.

The previous prime is 156665100043. The next prime is 156665100073. The reversal of 156665100056 is 650001566651.

It is a junction number, because it is equal to n+sod(n) for n = 156665099986 and 156665100022.

It is a congruent number.

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, 7504211 + ... + 7525058.

It is an arithmetic number, because the mean of its divisors is an integer number (18373282575).

Almost surely, 2^156665100056 is an apocalyptic number.

It is an amenable number.

156665100056 is a deficient number, since it is larger than the sum of its proper divisors (137307421144).

156665100056 is a wasteful number, since it uses less digits than its factorization.

156665100056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15030578 (or 15030574 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 156665100056 in words is "one hundred fifty-six billion, six hundred sixty-five million, one hundred thousand, fifty-six".