72213353585 has 16 divisors (see below), whose sum is σ = 87492566016. Its totient is φ = 57213318528.

The previous prime is 72213353581. The next prime is 72213353603. The reversal of 72213353585 is 58535331227.

It is a cyclic number.

It is not a de Polignac number, because 72213353585 - 2² = 72213353581 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72213353581) 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, 1903472 + ... + 1941038.

It is an arithmetic number, because the mean of its divisors is an integer number (5468285376).

Almost surely, 2^72213353585 is an apocalyptic number.

It is an amenable number.

72213353585 is a deficient number, since it is larger than the sum of its proper divisors (15279212431).

72213353585 is a wasteful number, since it uses less digits than its factorization.

72213353585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41272.

The product of its digits is 756000, while the sum is 44.

The spelling of 72213353585 in words is "seventy-two billion, two hundred thirteen million, three hundred fifty-three thousand, five hundred eighty-five".