6664690032 has 320 divisors, whose sum is σ = 23518494720. Its totient is φ = 1570176000.

The previous prime is 6664690003. The next prime is 6664690051. The reversal of 6664690032 is 2300964666.

It is a super-2 number, since 2×6664690032² = 88836186445280322048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2833657 + ... + 2836007.

It is an arithmetic number, because the mean of its divisors is an integer number (73495296).

Almost surely, 2^6664690032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6664690032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11759247360).

6664690032 is an abundant number, since it is smaller than the sum of its proper divisors (16853804688).

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

6664690032 is a wasteful number, since it uses less digits than its factorization.

6664690032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2452 (or 2446 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 42.

The square root of 6664690032 is about 81637.5528295649. The cubic root of 6664690032 is about 1881.8860309318.

It can be divided in two parts, 6664 and 690032, that added together give a palindrome (696696).

The spelling of 6664690032 in words is "six billion, six hundred sixty-four million, six hundred ninety thousand, thirty-two".