172066655464 has 16 divisors (see below), whose sum is σ = 351954522720. Its totient is φ = 78212116080.

The previous prime is 172066655447. The next prime is 172066655477. The reversal of 172066655464 is 464556660271.

It is a happy number.

172066655464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 977651364 + ... + 977651539.

It is an arithmetic number, because the mean of its divisors is an integer number (21997157670).

Almost surely, 2^172066655464 is an apocalyptic number.

It is an amenable number.

172066655464 is an abundant number, since it is smaller than the sum of its proper divisors (179887867256).

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

172066655464 is a wasteful number, since it uses less digits than its factorization.

172066655464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955302920 (or 1955302916 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 52.

The spelling of 172066655464 in words is "one hundred seventy-two billion, sixty-six million, six hundred fifty-five thousand, four hundred sixty-four".