66485377358466 has 64 divisors (see below), whose sum is σ = 153608640921216. Its totient is φ = 18959893171200.

The previous prime is 66485377358383. The next prime is 66485377358501.

66485377358466 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 66485377358391 and 66485377358400.

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, 7073976 + ... + 13528188.

It is an arithmetic number, because the mean of its divisors is an integer number (2400135014394).

Almost surely, 2^{66485377358466} is an apocalyptic number.

66485377358466 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

66485377358466 is an abundant number, since it is smaller than the sum of its proper divisors (87123263562750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66485377358466 is a wasteful number, since it uses less digits than its factorization.

66485377358466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6463427.

The product of its digits is 14631321600, while the sum is 78.

The spelling of 66485377358466 in words is "sixty-six trillion, four hundred eighty-five billion, three hundred seventy-seven million, three hundred fifty-eight thousand, four hundred sixty-six".