9964664699 has 32 divisors (see below), whose sum is σ = 11724963840. Its totient is φ = 8367321600.

The previous prime is 9964664687. The next prime is 9964664719.

9964664699 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9964664699 - 2⁸ = 9964664443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9964664659) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7790342 + ... + 7791620.

It is an arithmetic number, because the mean of its divisors is an integer number (366405120).

Almost surely, 2^9964664699 is an apocalyptic number.

9964664699 is a deficient number, since it is larger than the sum of its proper divisors (1760299141).

9964664699 is a wasteful number, since it uses less digits than its factorization.

9964664699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051.

The product of its digits is 136048896, while the sum is 68.

The square root of 9964664699 is about 99823.1671457082. The cubic root of 9964664699 is about 2151.8941086625.

The spelling of 9964664699 in words is "nine billion, nine hundred sixty-four million, six hundred sixty-four thousand, six hundred ninety-nine".