3679655572521 has 16 divisors (see below), whose sum is σ = 5455098601920. Its totient is φ = 2451413059200.

The previous prime is 3679655572511. The next prime is 3679655572543. The reversal of 3679655572521 is 1252755569763.

3679655572521 is a `hidden beast` number, since 3 + 6 + 7 + 9 + 6 + 5 + 5 + 572 + 52 + 1 = 666.

It is not a de Polignac number, because 3679655572521 - 2⁶ = 3679655572457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3679655572511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46922760 + ... + 47001113.

It is an arithmetic number, because the mean of its divisors is an integer number (340943662620).

Almost surely, 2^{3679655572521} is an apocalyptic number.

It is an amenable number.

3679655572521 is a deficient number, since it is larger than the sum of its proper divisors (1775443029399).

3679655572521 is a wasteful number, since it uses less digits than its factorization.

3679655572521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93925333 (or 93925327 counting only the distinct ones).

The product of its digits is 119070000, while the sum is 63.

The spelling of 3679655572521 in words is "three trillion, six hundred seventy-nine billion, six hundred fifty-five million, five hundred seventy-two thousand, five hundred twenty-one".