80656567466321 has 12 divisors (see below), whose sum is σ = 101320646735616. Its totient is φ = 62849273349720.

The previous prime is 80656567466309. The next prime is 80656567466333. The reversal of 80656567466321 is 12366476565608.

It is an interprime number because it is at equal distance from previous prime (80656567466309) and next prime (80656567466333).

It is not a de Polignac number, because 80656567466321 - 2²⁶ = 80656500357457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80656567466621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47613085025 + ... + 47613086718.

It is an arithmetic number, because the mean of its divisors is an integer number (8443387227968).

Almost surely, 2^{80656567466321} is an apocalyptic number.

It is an amenable number.

80656567466321 is a deficient number, since it is larger than the sum of its proper divisors (20664079269295).

80656567466321 is a wasteful number, since it uses less digits than its factorization.

80656567466321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95226171772 (or 95226171761 counting only the distinct ones).

The product of its (nonzero) digits is 261273600, while the sum is 65.

The spelling of 80656567466321 in words is "eighty trillion, six hundred fifty-six billion, five hundred sixty-seven million, four hundred sixty-six thousand, three hundred twenty-one".