72165714430 has 16 divisors (see below), whose sum is σ = 129902881680. Its totient is φ = 28865264512.

The previous prime is 72165714427. The next prime is 72165714449. The reversal of 72165714430 is 3441756127.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212217 + ... + 435163.

It is an arithmetic number, because the mean of its divisors is an integer number (8118930105).

Almost surely, 2^72165714430 is an apocalyptic number.

72165714430 is a deficient number, since it is larger than the sum of its proper divisors (57737167250).

72165714430 is a wasteful number, since it uses less digits than its factorization.

72165714430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255323.

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 72165714430 in words is "seventy-two billion, one hundred sixty-five million, seven hundred fourteen thousand, four hundred thirty".