3656225112543 has 64 divisors (see below), whose sum is σ = 5665222656000. Its totient is φ = 2326112886240.

The previous prime is 3656225112481. The next prime is 3656225112563. The reversal of 3656225112543 is 3452115226563.

3656225112543 is a `hidden beast` number, since 3 + 6 + 5 + 622 + 5 + 1 + 12 + 5 + 4 + 3 = 666.

It is not a de Polignac number, because 3656225112543 - 2³⁰ = 3655151370719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3656225112563) 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, 1006945338 + ... + 1006948968.

It is an arithmetic number, because the mean of its divisors is an integer number (88519104000).

Almost surely, 2^{3656225112543} is an apocalyptic number.

3656225112543 is a deficient number, since it is larger than the sum of its proper divisors (2008997543457).

3656225112543 is a wasteful number, since it uses less digits than its factorization.

3656225112543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6969 (or 6963 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 45.

The spelling of 3656225112543 in words is "three trillion, six hundred fifty-six billion, two hundred twenty-five million, one hundred twelve thousand, five hundred forty-three".