3656225601 has 24 divisors (see below), whose sum is σ = 6300980640. Its totient is φ = 2089271016.

The previous prime is 3656225593. The next prime is 3656225603. The reversal of 3656225601 is 1065226563.

It is a happy number.

3656225601 is a `hidden beast` number, since 36 + 5 + 62 + 2 + 560 + 1 = 666.

It is not a de Polignac number, because 3656225601 - 2³ = 3656225593 is a prime.

It is a super-2 number, since 2×3656225601² = 26735971290815622402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3656225603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1380471 + ... + 1383116.

It is an arithmetic number, because the mean of its divisors is an integer number (262540860).

Almost surely, 2^3656225601 is an apocalyptic number.

It is an amenable number.

3656225601 is a deficient number, since it is larger than the sum of its proper divisors (2644755039).

3656225601 is a wasteful number, since it uses less digits than its factorization.

3656225601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763610 (or 2763597 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 3656225601 is about 60466.7313570032. The cubic root of 3656225601 is about 1540.5566100921.

The spelling of 3656225601 in words is "three billion, six hundred fifty-six million, two hundred twenty-five thousand, six hundred one".