80721159676002 has 12 divisors (see below), whose sum is σ = 174895845964710. Its totient is φ = 26907053225328.

The previous prime is 80721159675983. The next prime is 80721159676151. The reversal of 80721159676002 is 20067695112708.

80721159676002 is a `hidden beast` number, since 8 + 0 + 7 + 21 + 1 + 5 + 9 + 6 + 7 + 600 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 63093933762561 + 17627225913441 = 7943169^2 + 4198479^2 .

It is a super-2 number, since 2×80721159676002² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80721159676002.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2242254435427 + ... + 2242254435462.

Almost surely, 2^{80721159676002} is an apocalyptic number.

80721159676002 is an abundant number, since it is smaller than the sum of its proper divisors (94174686288708).

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

80721159676002 is a wasteful number, since it uses less digits than its factorization.

80721159676002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4484508870897 (or 4484508870894 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 54.

The spelling of 80721159676002 in words is "eighty trillion, seven hundred twenty-one billion, one hundred fifty-nine million, six hundred seventy-six thousand, two".