99697523055 has 16 divisors (see below), whose sum is σ = 171786501600. Its totient is φ = 49081857408.

The previous prime is 99697523041. The next prime is 99697523063. The reversal of 99697523055 is 55032579699.

It is not a de Polignac number, because 99697523055 - 2¹² = 99697518959 is a prime.

It is a super-2 number, since 2×99697523055² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 99697523055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255634480 + ... + 255634869.

It is an arithmetic number, because the mean of its divisors is an integer number (10736656350).

Almost surely, 2^99697523055 is an apocalyptic number.

99697523055 is a deficient number, since it is larger than the sum of its proper divisors (72088978545).

99697523055 is a wasteful number, since it uses less digits than its factorization.

99697523055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511269370.

The product of its (nonzero) digits is 22963500, while the sum is 60.

The spelling of 99697523055 in words is "ninety-nine billion, six hundred ninety-seven million, five hundred twenty-three thousand, fifty-five".