37643676161 has 64 divisors (see below), whose sum is σ = 49156800000. Its totient is φ = 28619474688.

The previous prime is 37643676157. The next prime is 37643676199. The reversal of 37643676161 is 16167634673.

It is not a de Polignac number, because 37643676161 - 2² = 37643676157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (37643676121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13692215 + ... + 13694963.

It is an arithmetic number, because the mean of its divisors is an integer number (768075000).

Almost surely, 2^37643676161 is an apocalyptic number.

It is an amenable number.

37643676161 is a deficient number, since it is larger than the sum of its proper divisors (11513123839).

37643676161 is a wasteful number, since it uses less digits than its factorization.

37643676161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903 (or 2889 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 50.

The spelling of 37643676161 in words is "thirty-seven billion, six hundred forty-three million, six hundred seventy-six thousand, one hundred sixty-one".