99669666696699 has 8 divisors (see below), whose sum is σ = 144974060649792. Its totient is φ = 60405858604040.

The previous prime is 99669666696667. The next prime is 99669666696707.

99669666696699 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99669666696699 - 2⁵ = 99669666696667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99669666692699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1510146465069 + ... + 1510146465134.

It is an arithmetic number, because the mean of its divisors is an integer number (18121757581224).

Almost surely, 2^{99669666696699} is an apocalyptic number.

99669666696699 is a deficient number, since it is larger than the sum of its proper divisors (45304393953093).

99669666696699 is a wasteful number, since it uses less digits than its factorization.

99669666696699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3020292930217.

The product of its digits is 892616806656, while the sum is 102.

The spelling of 99669666696699 in words is "ninety-nine trillion, six hundred sixty-nine billion, six hundred sixty-six million, six hundred ninety-six thousand, six hundred ninety-nine".