3656525220732 has 48 divisors (see below), whose sum is σ = 9021212533760. Its totient is φ = 1149514167168.

The previous prime is 3656525220731. The next prime is 3656525220743. The reversal of 3656525220732 is 2370225256563.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3656525220731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35907433 + ... + 36009120.

Almost surely, 2^{3656525220732} is an apocalyptic number.

It is an amenable number.

3656525220732 is an abundant number, since it is smaller than the sum of its proper divisors (5364687313028).

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

3656525220732 is a wasteful number, since it uses less digits than its factorization.

3656525220732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71916802 (or 71916800 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 48.

The spelling of 3656525220732 in words is "three trillion, six hundred fifty-six billion, five hundred twenty-five million, two hundred twenty thousand, seven hundred thirty-two".