172375407555 has 16 divisors (see below), whose sum is σ = 297016087200. Its totient is φ = 84861739008.

The previous prime is 172375407539. The next prime is 172375407577. The reversal of 172375407555 is 555704573271.

It is not a de Polignac number, because 172375407555 - 2⁴ = 172375407539 is a prime.

It is a super-2 number, since 2×172375407555² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 172375407498 and 172375407507.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 441988030 + ... + 441988419.

It is an arithmetic number, because the mean of its divisors is an integer number (18563505450).

Almost surely, 2^172375407555 is an apocalyptic number.

172375407555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

172375407555 is a deficient number, since it is larger than the sum of its proper divisors (124640679645).

172375407555 is a wasteful number, since it uses less digits than its factorization.

172375407555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883976470.

The product of its (nonzero) digits is 5145000, while the sum is 51.

The spelling of 172375407555 in words is "one hundred seventy-two billion, three hundred seventy-five million, four hundred seven thousand, five hundred fifty-five".