3657166044 has 24 divisors (see below), whose sum is σ = 9752443008. Its totient is φ = 1044904560.

The previous prime is 3657166031. The next prime is 3657166067. The reversal of 3657166044 is 4406617563.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 3657165987 and 3657166005.

It is a congruent number.

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, 21768762 + ... + 21768929.

It is an arithmetic number, because the mean of its divisors is an integer number (406351792).

Almost surely, 2^3657166044 is an apocalyptic number.

It is an amenable number.

3657166044 is an abundant number, since it is smaller than the sum of its proper divisors (6095276964).

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

3657166044 is a wasteful number, since it uses less digits than its factorization.

3657166044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43537705 (or 43537703 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 3657166044 is about 60474.5073894778. The cubic root of 3657166044 is about 1540.6886844986.

The spelling of 3657166044 in words is "three billion, six hundred fifty-seven million, one hundred sixty-six thousand, forty-four".