72664562115326 has 16 divisors (see below), whose sum is σ = 111953478028320. Its totient is φ = 35346925127520.

The previous prime is 72664562115323. The next prime is 72664562115347. The reversal of 72664562115326 is 62351126546627.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72664562115323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46481261 + ... + 48019128.

It is an arithmetic number, because the mean of its divisors is an integer number (6997092376770).

Almost surely, 2^{72664562115326} is an apocalyptic number.

72664562115326 is a deficient number, since it is larger than the sum of its proper divisors (39288915912994).

72664562115326 is a wasteful number, since it uses less digits than its factorization.

72664562115326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94510819.

The product of its digits is 21772800, while the sum is 56.

The spelling of 72664562115326 in words is "seventy-two trillion, six hundred sixty-four billion, five hundred sixty-two million, one hundred fifteen thousand, three hundred twenty-six".