3525421635656 has 32 divisors (see below), whose sum is σ = 6835406408640. Its totient is φ = 1703639391168.

The previous prime is 3525421635653. The next prime is 3525421635667. The reversal of 3525421635656 is 6565361245253.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a junction number, because it is equal to n+sod(n) for n = 3525421635598 and 3525421635607.

It is not an unprimeable number, because it can be changed into a prime (3525421635653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62021396 + ... + 62078211.

It is an arithmetic number, because the mean of its divisors is an integer number (213606450270).

Almost surely, 2^{3525421635656} is an apocalyptic number.

It is an amenable number.

3525421635656 is a deficient number, since it is larger than the sum of its proper divisors (3309984772984).

3525421635656 is a wasteful number, since it uses less digits than its factorization.

3525421635656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124099733 (or 124099729 counting only the distinct ones).

The product of its digits is 19440000, while the sum is 53.

The spelling of 3525421635656 in words is "three trillion, five hundred twenty-five billion, four hundred twenty-one million, six hundred thirty-five thousand, six hundred fifty-six".