172066515716662 has 24 divisors (see below), whose sum is σ = 300922426799280. Its totient is φ = 73574813405520.

The previous prime is 172066515716659. The next prime is 172066515716707. The reversal of 172066515716662 is 266617515660271.

172066515716662 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 172066515716662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1999707289 + ... + 1999793332.

It is an arithmetic number, because the mean of its divisors is an integer number (12538434449970).

Almost surely, 2^{172066515716662} is an apocalyptic number.

172066515716662 is a deficient number, since it is larger than the sum of its proper divisors (128855911082618).

172066515716662 is a wasteful number, since it uses less digits than its factorization.

172066515716662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3999501076 (or 3999501069 counting only the distinct ones).

The product of its (nonzero) digits is 38102400, while the sum is 61.

The spelling of 172066515716662 in words is "one hundred seventy-two trillion, sixty-six billion, five hundred fifteen million, seven hundred sixteen thousand, six hundred sixty-two".