72223740220 has 24 divisors (see below), whose sum is σ = 151719435504. Its totient is φ = 28880052096.

The previous prime is 72223740163. The next prime is 72223740307. The reversal of 72223740220 is 2204732227.

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, 527377 + ... + 650056.

It is an arithmetic number, because the mean of its divisors is an integer number (6321643146).

Almost surely, 2^72223740220 is an apocalyptic number.

It is an amenable number.

72223740220 is an abundant number, since it is smaller than the sum of its proper divisors (79495695284).

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

72223740220 is a wasteful number, since it uses less digits than its factorization.

72223740220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180509 (or 1180507 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 31.

The spelling of 72223740220 in words is "seventy-two billion, two hundred twenty-three million, seven hundred forty thousand, two hundred twenty".