155171981292124 has 24 divisors (see below), whose sum is σ = 287324175913040. Its totient is φ = 73121675387904.

The previous prime is 155171981292101. The next prime is 155171981292137. The reversal of 155171981292124 is 421292189171551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5289458379 + ... + 5289487714.

Almost surely, 2^{155171981292124} is an apocalyptic number.

It is an amenable number.

155171981292124 is a deficient number, since it is larger than the sum of its proper divisors (132152194620916).

155171981292124 is a wasteful number, since it uses less digits than its factorization.

155171981292124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10578946309 (or 10578946307 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 58.

The spelling of 155171981292124 in words is "one hundred fifty-five trillion, one hundred seventy-one billion, nine hundred eighty-one million, two hundred ninety-two thousand, one hundred twenty-four".