99701561886 has 32 divisors (see below), whose sum is σ = 213105945600. Its totient is φ = 30986591616.

The previous prime is 99701561881. The next prime is 99701561893. The reversal of 99701561886 is 68816510799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99701561881) 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, 4556686 + ... + 4578513.

It is an arithmetic number, because the mean of its divisors is an integer number (6659560800).

Almost surely, 2^99701561886 is an apocalyptic number.

99701561886 is an abundant number, since it is smaller than the sum of its proper divisors (113404383714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99701561886 is a wasteful number, since it uses less digits than its factorization.

99701561886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9135328.

The product of its (nonzero) digits is 6531840, while the sum is 60.

The spelling of 99701561886 in words is "ninety-nine billion, seven hundred one million, five hundred sixty-one thousand, eight hundred eighty-six".