66456477465466 has 64 divisors (see below), whose sum is σ = 110207435103360. Its totient is φ = 29803306199040.

The previous prime is 66456477465449. The next prime is 66456477465479.

66456477465466 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 66456477465392 and 66456477465401.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6321356626 + ... + 6321367138.

It is an arithmetic number, because the mean of its divisors is an integer number (1721991173490).

Almost surely, 2^{66456477465466} is an apocalyptic number.

66456477465466 is a deficient number, since it is larger than the sum of its proper divisors (43750957637894).

66456477465466 is a wasteful number, since it uses less digits than its factorization.

66456477465466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17311.

The product of its digits is 14631321600, while the sum is 76.

The spelling of 66456477465466 in words is "sixty-six trillion, four hundred fifty-six billion, four hundred seventy-seven million, four hundred sixty-five thousand, four hundred sixty-six".