37421081664 has 56 divisors (see below), whose sum is σ = 99108585120. Its totient is φ = 12461266944.

The previous prime is 37421081641. The next prime is 37421081681. The reversal of 37421081664 is 46618012473.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97147 + ... + 290309.

Almost surely, 2^37421081664 is an apocalyptic number.

It is an amenable number.

37421081664 is an abundant number, since it is smaller than the sum of its proper divisors (61687503456).

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

37421081664 is a wasteful number, since it uses less digits than its factorization.

37421081664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194187 (or 194177 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 37421081664 in words is "thirty-seven billion, four hundred twenty-one million, eighty-one thousand, six hundred sixty-four".