99691266567 has 16 divisors (see below), whose sum is σ = 140850915552. Its totient is φ = 62502359040.

The previous prime is 99691266559. The next prime is 99691266583. The reversal of 99691266567 is 76566219699.

It is not a de Polignac number, because 99691266567 - 2³ = 99691266559 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99691266498 and 99691266507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99691266527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 700234 + ... + 830487.

It is an arithmetic number, because the mean of its divisors is an integer number (8803182222).

Almost surely, 2^99691266567 is an apocalyptic number.

99691266567 is a deficient number, since it is larger than the sum of its proper divisors (41159648985).

99691266567 is a wasteful number, since it uses less digits than its factorization.

99691266567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532018.

The product of its digits is 66134880, while the sum is 66.

The spelling of 99691266567 in words is "ninety-nine billion, six hundred ninety-one million, two hundred sixty-six thousand, five hundred sixty-seven".