72372165170 has 32 divisors (see below), whose sum is σ = 132263228160. Its totient is φ = 28506882880.

The previous prime is 72372165161. The next prime is 72372165181. The reversal of 72372165170 is 7156127327.

It is a super-2 number, since 2×72372165170² (a number of 23 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 534944 + ... + 656436.

It is an arithmetic number, because the mean of its divisors is an integer number (4133225880).

Almost surely, 2^72372165170 is an apocalyptic number.

72372165170 is a deficient number, since it is larger than the sum of its proper divisors (59891062990).

72372165170 is a wasteful number, since it uses less digits than its factorization.

72372165170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122410.

The product of its (nonzero) digits is 123480, while the sum is 41.

The spelling of 72372165170 in words is "seventy-two billion, three hundred seventy-two million, one hundred sixty-five thousand, one hundred seventy".