172066126265 has 32 divisors (see below), whose sum is σ = 231430798080. Its totient is φ = 121708051200.

The previous prime is 172066126259. The next prime is 172066126273. The reversal of 172066126265 is 562621660271.

It is not a de Polignac number, because 172066126265 - 2¹⁶ = 172066060729 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5501291 + ... + 5532479.

It is an arithmetic number, because the mean of its divisors is an integer number (7232212440).

Almost surely, 2^172066126265 is an apocalyptic number.

It is an amenable number.

172066126265 is a deficient number, since it is larger than the sum of its proper divisors (59364671815).

172066126265 is a wasteful number, since it uses less digits than its factorization.

172066126265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33953.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 172066126265 in words is "one hundred seventy-two billion, sixty-six million, one hundred twenty-six thousand, two hundred sixty-five".