80684166465 has 96 divisors (see below), whose sum is σ = 160769995776. Its totient is φ = 36668298240.

The previous prime is 80684166413. The next prime is 80684166467. The reversal of 80684166465 is 56466148608.

80684166465 is a `hidden beast` number, since 80 + 6 + 8 + 41 + 66 + 465 = 666.

It is not a de Polignac number, because 80684166465 - 2¹⁴ = 80684150081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80684166467) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 54258952 + ... + 54260438.

It is an arithmetic number, because the mean of its divisors is an integer number (1674687456).

Almost surely, 2^80684166465 is an apocalyptic number.

It is an amenable number.

80684166465 is a deficient number, since it is larger than the sum of its proper divisors (80085829311).

80684166465 is a wasteful number, since it uses less digits than its factorization.

80684166465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399 (or 2396 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The spelling of 80684166465 in words is "eighty billion, six hundred eighty-four million, one hundred sixty-six thousand, four hundred sixty-five".