3660322644 has 72 divisors (see below), whose sum is σ = 10419252480. Its totient is φ = 1073404800.

The previous prime is 3660322607. The next prime is 3660322651. The reversal of 3660322644 is 4462230663.

3660322644 is a `hidden beast` number, since 3 + 6 + 6 + 0 + 3 + 2 + 2 + 644 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 3660322599 and 3660322608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136809 + ... + 161360.

It is an arithmetic number, because the mean of its divisors is an integer number (144711840).

Almost surely, 2^3660322644 is an apocalyptic number.

It is an amenable number.

3660322644 is an abundant number, since it is smaller than the sum of its proper divisors (6758929836).

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

3660322644 is a wasteful number, since it uses less digits than its factorization.

3660322644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298221 (or 298216 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 36.

The square root of 3660322644 is about 60500.6003606576. The cubic root of 3660322644 is about 1541.1318272022.

The spelling of 3660322644 in words is "three billion, six hundred sixty million, three hundred twenty-two thousand, six hundred forty-four".