3652121660 has 24 divisors (see below), whose sum is σ = 8366679216. Its totient is φ = 1328044160.

The previous prime is 3652121633. The next prime is 3652121729. The reversal of 3652121660 is 661212563.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 8300057 + ... + 8300496.

It is an arithmetic number, because the mean of its divisors is an integer number (348611634).

Almost surely, 2^3652121660 is an apocalyptic number.

It is an amenable number.

3652121660 is an abundant number, since it is smaller than the sum of its proper divisors (4714557556).

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

3652121660 is a wasteful number, since it uses less digits than its factorization.

3652121660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16600573 (or 16600571 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 3652121660 is about 60432.7863001533. The cubic root of 3652121660 is about 1539.9799935558.

The spelling of 3652121660 in words is "three billion, six hundred fifty-two million, one hundred twenty-one thousand, six hundred sixty".