172314651664 has 45 divisors (see below), whose sum is σ = 336508765911. Its totient is φ = 85479039360.

The previous prime is 172314651637. The next prime is 172314651673. The reversal of 172314651664 is 466156413271.

It is a happy number.

The square root of 172314651664 is 415108.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1752259600 + 170562392064 = 41860^2 + 412992^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 260687494 + ... + 260688154.

Almost surely, 2^172314651664 is an apocalyptic number.

172314651664 is the 415108-th square number.

It is an amenable number.

172314651664 is a deficient number, since it is larger than the sum of its proper divisors (164194114247).

172314651664 is an frugal number, since it uses more digits than its factorization.

172314651664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644 (or 820 counting only the distinct ones).

The product of its digits is 725760, while the sum is 46.

The spelling of 172314651664 in words is "one hundred seventy-two billion, three hundred fourteen million, six hundred fifty-one thousand, six hundred sixty-four".