155666678936 has 16 divisors (see below), whose sum is σ = 292291403040. Its totient is φ = 77722304800.

The previous prime is 155666678917. The next prime is 155666678941. The reversal of 155666678936 is 639876666551.

It is a super-2 number, since 2×155666678936² (a number of 23 digits) contains 22 as substring.

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, 13873376 + ... + 13884591.

It is an arithmetic number, because the mean of its divisors is an integer number (18268212690).

Almost surely, 2^155666678936 is an apocalyptic number.

It is an amenable number.

155666678936 is a deficient number, since it is larger than the sum of its proper divisors (136624724104).

155666678936 is a wasteful number, since it uses less digits than its factorization.

155666678936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27758674 (or 27758670 counting only the distinct ones).

The product of its digits is 293932800, while the sum is 68.

The spelling of 155666678936 in words is "one hundred fifty-five billion, six hundred sixty-six million, six hundred seventy-eight thousand, nine hundred thirty-six".