6664837512 has 64 divisors (see below), whose sum is σ = 17624810880. Its totient is φ = 2095898112.

The previous prime is 6664837493. The next prime is 6664837561. The reversal of 6664837512 is 2157384666.

It is a super-2 number, since 2×6664837512² = 88840118122724700288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42403 + ... + 122994.

It is an arithmetic number, because the mean of its divisors is an integer number (275387670).

Almost surely, 2^6664837512 is an apocalyptic number.

It is an amenable number.

6664837512 is an abundant number, since it is smaller than the sum of its proper divisors (10959973368).

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

6664837512 is a wasteful number, since it uses less digits than its factorization.

6664837512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165502 (or 165498 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The square root of 6664837512 is about 81638.4560853523. The cubic root of 6664837512 is about 1881.8999119727.

It can be divided in two parts, 66 and 64837512, that added together give a triangular number (64837578 = T₁₁₃₈₇).

The spelling of 6664837512 in words is "six billion, six hundred sixty-four million, eight hundred thirty-seven thousand, five hundred twelve".