7664690964667 has 6 divisors (see below), whose sum is σ = 8424825605924. Its totient is φ = 6967900876860.

The previous prime is 7664690964617. The next prime is 7664690964719.

7664690964667 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 7664690964667 - 2¹⁵ = 7664690931899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7664690964593 and 7664690964602.

It is not an unprimeable number, because it can be changed into a prime (7664690964617) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31672276593 + ... + 31672276834.

Almost surely, 2^{7664690964667} is an apocalyptic number.

7664690964667 is a deficient number, since it is larger than the sum of its proper divisors (760134641257).

7664690964667 is a wasteful number, since it uses less digits than its factorization.

7664690964667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63344553449 (or 63344553438 counting only the distinct ones).

The product of its (nonzero) digits is 2962842624, while the sum is 76.

The spelling of 7664690964667 in words is "seven trillion, six hundred sixty-four billion, six hundred ninety million, nine hundred sixty-four thousand, six hundred sixty-seven".