172423755374656 has 56 divisors (see below), whose sum is σ = 362281968994176. Its totient is φ = 81140163102720.

The previous prime is 172423755374599. The next prime is 172423755374677. The reversal of 172423755374656 is 656473557324271.

It is a junction number, because it is equal to n+sod(n) for n = 172423755374591 and 172423755374600.

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, 316735341 + ... + 317279251.

It is an arithmetic number, because the mean of its divisors is an integer number (6469320874896).

Almost surely, 2^{172423755374656} is an apocalyptic number.

172423755374656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

172423755374656 is an abundant number, since it is smaller than the sum of its proper divisors (189858213619520).

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

172423755374656 is a wasteful number, since it uses less digits than its factorization.

172423755374656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835307 (or 835297 counting only the distinct ones).

The product of its digits is 889056000, while the sum is 67.

The spelling of 172423755374656 in words is "one hundred seventy-two trillion, four hundred twenty-three billion, seven hundred fifty-five million, three hundred seventy-four thousand, six hundred fifty-six".