3666403615 has 16 divisors (see below), whose sum is σ = 5029273152. Its totient is φ = 2513574144.

The previous prime is 3666403579. The next prime is 3666403649. The reversal of 3666403615 is 5163046663.

3666403615 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3666403615 - 2¹⁷ = 3666272543 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, 232357 + ... + 247633.

It is an arithmetic number, because the mean of its divisors is an integer number (314329572).

Almost surely, 2^3666403615 is an apocalyptic number.

3666403615 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3666403615 is a deficient number, since it is larger than the sum of its proper divisors (1362869537).

3666403615 is a wasteful number, since it uses less digits than its factorization.

3666403615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22146.

The product of its (nonzero) digits is 233280, while the sum is 40.

The square root of 3666403615 is about 60550.8349653413. The cubic root of 3666403615 is about 1541.9847932666.

The spelling of 3666403615 in words is "three billion, six hundred sixty-six million, four hundred three thousand, six hundred fifteen".