72664563102 has 32 divisors (see below), whose sum is σ = 147397255200. Its totient is φ = 23877181440.

The previous prime is 72664563089. The next prime is 72664563109. The reversal of 72664563102 is 20136546627.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72664563109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 811102 + ... + 896222.

It is an arithmetic number, because the mean of its divisors is an integer number (4606164225).

Almost surely, 2^72664563102 is an apocalyptic number.

72664563102 is an abundant number, since it is smaller than the sum of its proper divisors (74732692098).

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

72664563102 is a wasteful number, since it uses less digits than its factorization.

72664563102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87148.

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 72664563102 in words is "seventy-two billion, six hundred sixty-four million, five hundred sixty-three thousand, one hundred two".