99623699632699 has 16 divisors (see below), whose sum is σ = 109352801859840. Its totient is φ = 90006878950560.

The previous prime is 99623699632673. The next prime is 99623699632711.

It is a happy number.

99623699632699 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 99623699632699 - 2⁷ = 99623699632571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99623699638699) 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, 3933457 + ... + 14653309.

It is an arithmetic number, because the mean of its divisors is an integer number (6834550116240).

Almost surely, 2^{99623699632699} is an apocalyptic number.

99623699632699 is a deficient number, since it is larger than the sum of its proper divisors (9729102227141).

99623699632699 is a wasteful number, since it uses less digits than its factorization.

99623699632699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10725090.

The product of its digits is 24794911296, while the sum is 88.

The spelling of 99623699632699 in words is "ninety-nine trillion, six hundred twenty-three billion, six hundred ninety-nine million, six hundred thirty-two thousand, six hundred ninety-nine".