664060299 has 24 divisors (see below), whose sum is σ = 1065494160. Its totient is φ = 366375744.

The previous prime is 664060289. The next prime is 664060339. The reversal of 664060299 is 992060466.

It is not a de Polignac number, because 664060299 - 2⁴ = 664060283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 664060299.

It is not an unprimeable number, because it can be changed into a prime (664060289) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73624 + ... + 82149.

It is an arithmetic number, because the mean of its divisors is an integer number (44395590).

Almost surely, 2^664060299 is an apocalyptic number.

664060299 is a deficient number, since it is larger than the sum of its proper divisors (401433861).

664060299 is a wasteful number, since it uses less digits than its factorization.

664060299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155819 (or 155812 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 664060299 is about 25769.3674544021. The cubic root of 664060299 is about 872.4405419755.

The spelling of 664060299 in words is "six hundred sixty-four million, sixty thousand, two hundred ninety-nine".