66467131804 has 48 divisors (see below), whose sum is σ = 119037794400. Its totient is φ = 32464142336.

The previous prime is 66467131789. The next prime is 66467131859. The reversal of 66467131804 is 40813176466.

It is a super-2 number, since 2×66467131804² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30870792 + ... + 30872944.

It is an arithmetic number, because the mean of its divisors is an integer number (2479954050).

Almost surely, 2^66467131804 is an apocalyptic number.

It is an amenable number.

66467131804 is a deficient number, since it is larger than the sum of its proper divisors (52570662596).

66467131804 is a wasteful number, since it uses less digits than its factorization.

66467131804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2982 (or 2980 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 66467131804 in words is "sixty-six billion, four hundred sixty-seven million, one hundred thirty-one thousand, eight hundred four".