99994597120 has 144 divisors (see below), whose sum is σ = 265723597440. Its totient is φ = 35745075200.

The previous prime is 99994597103. The next prime is 99994597169. The reversal of 99994597120 is 2179549999.

It is a super-2 number, since 2×99994597120² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (64).

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, 770535 + ... + 890905.

It is an arithmetic number, because the mean of its divisors is an integer number (1845302760).

Almost surely, 2^99994597120 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 99994597120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132861798720).

99994597120 is an abundant number, since it is smaller than the sum of its proper divisors (165729000320).

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

99994597120 is a wasteful number, since it uses less digits than its factorization.

99994597120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120462 (or 120448 counting only the distinct ones).

The product of its (nonzero) digits is 16533720, while the sum is 64.

The spelling of 99994597120 in words is "ninety-nine billion, nine hundred ninety-four million, five hundred ninety-seven thousand, one hundred twenty".