72015076721080 has 64 divisors (see below), whose sum is σ = 167985800791200. Its totient is φ = 27764848803840.

The previous prime is 72015076721057. The next prime is 72015076721101. The reversal of 72015076721080 is 8012767051027.

It is a self number, because there is not a number n which added to its sum of digits gives 72015076721080.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264391785 + ... + 264664024.

Almost surely, 2^{72015076721080} is an apocalyptic number.

It is an amenable number.

72015076721080 is an abundant number, since it is smaller than the sum of its proper divisors (95970724070120).

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

72015076721080 is a wasteful number, since it uses less digits than its factorization.

72015076721080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529055944 (or 529055940 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 46.

The spelling of 72015076721080 in words is "seventy-two trillion, fifteen billion, seventy-six million, seven hundred twenty-one thousand, eighty".