880564406624991 has 24 divisors (see below), whose sum is σ = 1390336708176000. Its totient is φ = 532605908149200.

The previous prime is 880564406624983. The next prime is 880564406625103. The reversal of 880564406624991 is 199426604465088.

880564406624991 is a `hidden beast` number, since 8 + 8 + 0 + 56 + 440 + 6 + 6 + 2 + 49 + 91 = 666.

It is not a de Polignac number, because 880564406624991 - 2³ = 880564406624983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (880564406624921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8912365395 + ... + 8912464196.

It is an arithmetic number, because the mean of its divisors is an integer number (57930696174000).

Almost surely, 2^{880564406624991} is an apocalyptic number.

880564406624991 is a deficient number, since it is larger than the sum of its proper divisors (509772301551009).

880564406624991 is a wasteful number, since it uses less digits than its factorization.

880564406624991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17824830107 (or 17824830104 counting only the distinct ones).

The product of its (nonzero) digits is 716636160, while the sum is 72.

The spelling of 880564406624991 in words is "eight hundred eighty trillion, five hundred sixty-four billion, four hundred six million, six hundred twenty-four thousand, nine hundred ninety-one".