3651663115 has 4 divisors (see below), whose sum is σ = 4381995744. Its totient is φ = 2921330488.

The previous prime is 3651663109. The next prime is 3651663137. The reversal of 3651663115 is 5113661563.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5113661563 = 43049 ⋅118787.

It is a cyclic number.

It is not a de Polignac number, because 3651663115 - 2³ = 3651663107 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365166307 + ... + 365166316.

It is an arithmetic number, because the mean of its divisors is an integer number (1095498936).

Almost surely, 2^3651663115 is an apocalyptic number.

3651663115 is a deficient number, since it is larger than the sum of its proper divisors (730332629).

3651663115 is an equidigital number, since it uses as much as digits as its factorization.

3651663115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730332628.

The product of its digits is 48600, while the sum is 37.

The square root of 3651663115 is about 60428.9923381153. The cubic root of 3651663115 is about 1539.9155397262.

The spelling of 3651663115 in words is "three billion, six hundred fifty-one million, six hundred sixty-three thousand, one hundred fifteen".