3640658447164 has 6 divisors (see below), whose sum is σ = 6371152282544. Its totient is φ = 1820329223580.

The previous prime is 3640658447099. The next prime is 3640658447203. The reversal of 3640658447164 is 4617448560463.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3640658447099 and 3640658447108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 455082305892 + ... + 455082305899.

Almost surely, 2^{3640658447164} is an apocalyptic number.

It is an amenable number.

3640658447164 is a deficient number, since it is larger than the sum of its proper divisors (2730493835380).

3640658447164 is a wasteful number, since it uses less digits than its factorization.

3640658447164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910164611795 (or 910164611793 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 58.

The spelling of 3640658447164 in words is "three trillion, six hundred forty billion, six hundred fifty-eight million, four hundred forty-seven thousand, one hundred sixty-four".