99745558966 has 32 divisors (see below), whose sum is σ = 157344295680. Its totient is φ = 47363623776.

The previous prime is 99745558949. The next prime is 99745558967. The reversal of 99745558966 is 66985554799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99745558967) 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, 4950685 + ... + 4970791.

It is an arithmetic number, because the mean of its divisors is an integer number (4917009240).

Almost surely, 2^99745558966 is an apocalyptic number.

99745558966 is a deficient number, since it is larger than the sum of its proper divisors (57598736714).

99745558966 is a wasteful number, since it uses less digits than its factorization.

99745558966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21748.

The product of its digits is 734832000, while the sum is 73.

The spelling of 99745558966 in words is "ninety-nine billion, seven hundred forty-five million, five hundred fifty-eight thousand, nine hundred sixty-six".