72055200280 has 64 divisors (see below), whose sum is σ = 185307912000. Its totient is φ = 24701558784.

The previous prime is 72055200263. The next prime is 72055200299. The reversal of 72055200280 is 8200255027.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4351056 + ... + 4367584.

It is an arithmetic number, because the mean of its divisors is an integer number (2895436125).

Almost surely, 2^72055200280 is an apocalyptic number.

72055200280 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

72055200280 is an abundant number, since it is smaller than the sum of its proper divisors (113252711720).

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

72055200280 is a wasteful number, since it uses less digits than its factorization.

72055200280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32116 (or 32112 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

The spelling of 72055200280 in words is "seventy-two billion, fifty-five million, two hundred thousand, two hundred eighty".