99935688572544 has 256 divisors, whose sum is σ = 306843195288960. Its totient is φ = 28481490124800.

The previous prime is 99935688572521. The next prime is 99935688572567. The reversal of 99935688572544 is 44527588653999.

99935688572544 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (99935688572521) and next prime (99935688572567).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98662972 + ... + 99670724.

Almost surely, 2^{99935688572544} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99935688572544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153421597644480).

99935688572544 is an abundant number, since it is smaller than the sum of its proper divisors (206907506716416).

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

99935688572544 is a wasteful number, since it uses less digits than its factorization.

99935688572544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009179 (or 1009167 counting only the distinct ones).

The product of its digits is 23514624000, while the sum is 84.

The spelling of 99935688572544 in words is "ninety-nine trillion, nine hundred thirty-five billion, six hundred eighty-eight million, five hundred seventy-two thousand, five hundred forty-four".