80662904581 has 8 divisors (see below), whose sum is σ = 92226859200. Its totient is φ = 69109120608.

The previous prime is 80662904579. The next prime is 80662904591. The reversal of 80662904581 is 18540926608.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80662904581 - 2¹ = 80662904579 is a prime.

It is a super-2 number, since 2×80662904581² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80662904521) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2525656 + ... + 2557393.

It is an arithmetic number, because the mean of its divisors is an integer number (11528357400).

Almost surely, 2^80662904581 is an apocalyptic number.

It is an amenable number.

80662904581 is a deficient number, since it is larger than the sum of its proper divisors (11563954619).

80662904581 is a wasteful number, since it uses less digits than its factorization.

80662904581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5085323.

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 80662904581 in words is "eighty billion, six hundred sixty-two million, nine hundred four thousand, five hundred eighty-one".