3655220641615 has 8 divisors (see below), whose sum is σ = 4408991531568. Its totient is φ = 2909025338880.

The previous prime is 3655220641601. The next prime is 3655220641637. The reversal of 3655220641615 is 5161460225563.

3655220641615 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3655220641615 - 2²⁷ = 3655086423887 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 7 ways as a sum of consecutive naturals, for example, 1893895741 + ... + 1893897670.

It is an arithmetic number, because the mean of its divisors is an integer number (551123941446).

Almost surely, 2^{3655220641615} is an apocalyptic number.

3655220641615 is a deficient number, since it is larger than the sum of its proper divisors (753770889953).

3655220641615 is a wasteful number, since it uses less digits than its factorization.

3655220641615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3787793609.

The product of its (nonzero) digits is 1296000, while the sum is 46.

The spelling of 3655220641615 in words is "three trillion, six hundred fifty-five billion, two hundred twenty million, six hundred forty-one thousand, six hundred fifteen".