3656616648867 has 24 divisors (see below), whose sum is σ = 6500651821664. Its totient is φ = 1928764825344.

The previous prime is 3656616648851. The next prime is 3656616648869. The reversal of 3656616648867 is 7688466166563.

3656616648867 is a `hidden beast` number, since 3 + 6 + 566 + 16 + 6 + 48 + 8 + 6 + 7 = 666.

3656616648867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3656616648867 - 2⁴ = 3656616648851 is a prime.

It is a super-3 number, since 3×3656616648867³ (a number of 39 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3656616648795 and 3656616648804.

It is not an unprimeable number, because it can be changed into a prime (3656616648869) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2232365878 + ... + 2232367515.

Almost surely, 2^{3656616648867} is an apocalyptic number.

3656616648867 is a deficient number, since it is larger than the sum of its proper divisors (2844035172797).

3656616648867 is a wasteful number, since it uses less digits than its factorization.

3656616648867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4464733419 (or 4464733416 counting only the distinct ones).

The product of its digits is 1254113280, while the sum is 72.

The spelling of 3656616648867 in words is "three trillion, six hundred fifty-six billion, six hundred sixteen million, six hundred forty-eight thousand, eight hundred sixty-seven".