66373970404 has 24 divisors (see below), whose sum is σ = 136335725120. Its totient is φ = 27677176416.

The previous prime is 66373970353. The next prime is 66373970431. The reversal of 66373970404 is 40407937366.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32032734 + ... + 32034805.

Almost surely, 2^66373970404 is an apocalyptic number.

It is an amenable number.

66373970404 is an abundant number, since it is smaller than the sum of its proper divisors (69961754716).

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

66373970404 is a wasteful number, since it uses less digits than its factorization.

66373970404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64067587 (or 64067585 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 49.

The spelling of 66373970404 in words is "sixty-six billion, three hundred seventy-three million, nine hundred seventy thousand, four hundred four".