72205887057696 has 120 divisors (see below), whose sum is σ = 242692009338240. Its totient is φ = 20630253439872.

The previous prime is 72205887057691. The next prime is 72205887057701. The reversal of 72205887057696 is 69675078850227.

It is an interprime number because it is at equal distance from previous prime (72205887057691) and next prime (72205887057701).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (72205887057691) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1989782536 + ... + 1989818823.

It is an arithmetic number, because the mean of its divisors is an integer number (2022433411152).

Almost surely, 2^{72205887057696} is an apocalyptic number.

It is an amenable number.

72205887057696 is an abundant number, since it is smaller than the sum of its proper divisors (170486122280544).

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

72205887057696 is a wasteful number, since it uses less digits than its factorization.

72205887057696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3979601388 (or 3979601371 counting only the distinct ones).

The product of its (nonzero) digits is 711244800, while the sum is 72.

The spelling of 72205887057696 in words is "seventy-two trillion, two hundred five billion, eight hundred eighty-seven million, fifty-seven thousand, six hundred ninety-six".