72052066612170 has 96 divisors (see below), whose sum is σ = 194513866223040. Its totient is φ = 19190133740160.

The previous prime is 72052066612147. The next prime is 72052066612189. The reversal of 72052066612170 is 7121666025027.

It is a super-2 number, since 2×72052066612170² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16359876 + ... + 20291615.

It is an arithmetic number, because the mean of its divisors is an integer number (2026186106490).

Almost surely, 2^{72052066612170} is an apocalyptic number.

72052066612170 is an abundant number, since it is smaller than the sum of its proper divisors (122461799610870).

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

72052066612170 is a wasteful number, since it uses less digits than its factorization.

72052066612170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36652322 (or 36652310 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 72052066612170 in words is "seventy-two trillion, fifty-two billion, sixty-six million, six hundred twelve thousand, one hundred seventy".