3643465556 has 24 divisors (see below), whose sum is σ = 6452269824. Its totient is φ = 1800038880.

The previous prime is 3643465541. The next prime is 3643465571. The reversal of 3643465556 is 6555643463.

It is an interprime number because it is at equal distance from previous prime (3643465541) and next prime (3643465571).

It is a self number, because there is not a number n which added to its sum of digits gives 3643465556.

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, 180341 + ... + 199523.

It is an arithmetic number, because the mean of its divisors is an integer number (268844576).

Almost surely, 2^3643465556 is an apocalyptic number.

It is an amenable number.

3643465556 is a deficient number, since it is larger than the sum of its proper divisors (2808804268).

3643465556 is a wasteful number, since it uses less digits than its factorization.

3643465556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19751 (or 19749 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 47.

The square root of 3643465556 is about 60361.1261989039. The cubic root of 3643465556 is about 1538.7623659507.

The spelling of 3643465556 in words is "three billion, six hundred forty-three million, four hundred sixty-five thousand, five hundred fifty-six".