72306065615 has 16 divisors (see below), whose sum is σ = 99243217920. Its totient is φ = 49540995360.

The previous prime is 72306065597. The next prime is 72306065639. The reversal of 72306065615 is 51656060327.

It is not a de Polignac number, because 72306065615 - 2⁶ = 72306065551 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 796025 + ... + 882194.

It is an arithmetic number, because the mean of its divisors is an integer number (6202701120).

Almost surely, 2^72306065615 is an apocalyptic number.

72306065615 is a deficient number, since it is larger than the sum of its proper divisors (26937152305).

72306065615 is a wasteful number, since it uses less digits than its factorization.

72306065615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679462.

The product of its (nonzero) digits is 226800, while the sum is 41.

The spelling of 72306065615 in words is "seventy-two billion, three hundred six million, sixty-five thousand, six hundred fifteen".