3656980199 has 6 divisors (see below), whose sum is σ = 3748352040. Its totient is φ = 3567783920.

The previous prime is 3656980181. The next prime is 3656980213. The reversal of 3656980199 is 9910896563.

It is not a de Polignac number, because 3656980199 - 2¹⁶ = 3656914663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3656980099) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1086059 + ... + 1089420.

It is an arithmetic number, because the mean of its divisors is an integer number (624725340).

Almost surely, 2^3656980199 is an apocalyptic number.

3656980199 is a deficient number, since it is larger than the sum of its proper divisors (91371841).

3656980199 is an equidigital number, since it uses as much as digits as its factorization.

3656980199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2175561 (or 2175520 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 56.

The square root of 3656980199 is about 60472.9708134138. The cubic root of 3656980199 is about 1540.6625865003.

The spelling of 3656980199 in words is "three billion, six hundred fifty-six million, nine hundred eighty thousand, one hundred ninety-nine".