3656261564245 has 16 divisors (see below), whose sum is σ = 4395792955392. Its totient is φ = 2919493487680.

The previous prime is 3656261564239. The next prime is 3656261564281. The reversal of 3656261564245 is 5424651626563.

It is not a de Polignac number, because 3656261564245 - 2⁹ = 3656261563733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7906284 + ... + 8355946.

It is an arithmetic number, because the mean of its divisors is an integer number (274737059712).

Almost surely, 2^{3656261564245} is an apocalyptic number.

It is an amenable number.

3656261564245 is a deficient number, since it is larger than the sum of its proper divisors (739531391147).

3656261564245 is a wasteful number, since it uses less digits than its factorization.

3656261564245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452732.

The product of its digits is 31104000, while the sum is 55.

The spelling of 3656261564245 in words is "three trillion, six hundred fifty-six billion, two hundred sixty-one million, five hundred sixty-four thousand, two hundred forty-five".