37201671666 has 48 divisors (see below), whose sum is σ = 80955104256. Its totient is φ = 12346600608.

The previous prime is 37201671631. The next prime is 37201671671. The reversal of 37201671666 is 66617610273.

37201671666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4221621 + ... + 4230423.

It is an arithmetic number, because the mean of its divisors is an integer number (1686564672).

Almost surely, 2^37201671666 is an apocalyptic number.

37201671666 is an abundant number, since it is smaller than the sum of its proper divisors (43753432590).

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

37201671666 is a wasteful number, since it uses less digits than its factorization.

37201671666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9807 (or 9804 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 37201671666 in words is "thirty-seven billion, two hundred one million, six hundred seventy-one thousand, six hundred sixty-six".