6664507031 has 16 divisors (see below), whose sum is σ = 8220086784. Its totient is φ = 5261691744.

The previous prime is 6664507027. The next prime is 6664507033. The reversal of 6664507031 is 1307054666.

It is a happy number.

6664507031 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 6664507031 - 2² = 6664507027 is a prime.

It is a super-2 number, since 2×6664507031² = 88831307932496869922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6664507033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35915 + ... + 120908.

It is an arithmetic number, because the mean of its divisors is an integer number (513755424).

Almost surely, 2^6664507031 is an apocalyptic number.

6664507031 is a deficient number, since it is larger than the sum of its proper divisors (1555579753).

6664507031 is a wasteful number, since it uses less digits than its factorization.

6664507031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157310.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 6664507031 is about 81636.4320080196. The cubic root of 6664507031 is about 1881.8688063159.

The spelling of 6664507031 in words is "six billion, six hundred sixty-four million, five hundred seven thousand, thirty-one".