3646556316 has 36 divisors (see below), whose sum is σ = 9926737912. Its totient is φ = 1122017184.

The previous prime is 3646556281. The next prime is 3646556369. The reversal of 3646556316 is 6136556463.

3646556316 is a `hidden beast` number, since 3 + 6 + 4 + 6 + 5 + 5 + 631 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3895426 + ... + 3896361.

Almost surely, 2^3646556316 is an apocalyptic number.

3646556316 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3646556316 is an abundant number, since it is smaller than the sum of its proper divisors (6280181596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3646556316 is a wasteful number, since it uses less digits than its factorization.

3646556316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7791810 (or 7791805 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 45.

The square root of 3646556316 is about 60386.7230109401. The cubic root of 3646556316 is about 1539.1973548282.

The spelling of 3646556316 in words is "three billion, six hundred forty-six million, five hundred fifty-six thousand, three hundred sixteen".