172066655463 has 16 divisors (see below), whose sum is σ = 244989235200. Its totient is φ = 107182787040.

The previous prime is 172066655447. The next prime is 172066655477. The reversal of 172066655463 is 364556660271.

It is not a de Polignac number, because 172066655463 - 2⁴ = 172066655447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172066655483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31896943 + ... + 31902336.

It is an arithmetic number, because the mean of its divisors is an integer number (15311827200).

Almost surely, 2^172066655463 is an apocalyptic number.

172066655463 is a deficient number, since it is larger than the sum of its proper divisors (72922579737).

172066655463 is a wasteful number, since it uses less digits than its factorization.

172066655463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63799342.

The product of its (nonzero) digits is 5443200, while the sum is 51.

The spelling of 172066655463 in words is "one hundred seventy-two billion, sixty-six million, six hundred fifty-five thousand, four hundred sixty-three".