3666501664 has 48 divisors (see below), whose sum is σ = 8389483200. Its totient is φ = 1544719104.

The previous prime is 3666501659. The next prime is 3666501679. The reversal of 3666501664 is 4661056663.

It is a super-2 number, since 2×3666501664² = 26886468904229537792, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3666501664.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125499 + ... + 151930.

It is an arithmetic number, because the mean of its divisors is an integer number (174780900).

Almost surely, 2^3666501664 is an apocalyptic number.

It is an amenable number.

3666501664 is an abundant number, since it is smaller than the sum of its proper divisors (4722981536).

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

3666501664 is a wasteful number, since it uses less digits than its factorization.

3666501664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277505 (or 277497 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 43.

The square root of 3666501664 is about 60551.6446019429. The cubic root of 3666501664 is about 1541.9985386817.

The spelling of 3666501664 in words is "three billion, six hundred sixty-six million, five hundred one thousand, six hundred sixty-four".