99577954476 has 384 divisors, whose sum is σ = 347642910720. Its totient is φ = 23804928000.

The previous prime is 99577954451. The next prime is 99577954499. The reversal of 99577954476 is 67445977599.

99577954476 is a `hidden beast` number, since 9 + 9 + 5 + 7 + 7 + 9 + 544 + 76 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 43350160 + ... + 43352456.

It is an arithmetic number, because the mean of its divisors is an integer number (905320080).

Almost surely, 2^99577954476 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 99577954476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173821455360).

99577954476 is an abundant number, since it is smaller than the sum of its proper divisors (248064956244).

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

99577954476 is a wasteful number, since it uses less digits than its factorization.

99577954476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2742 (or 2734 counting only the distinct ones).

The product of its digits is 600112800, while the sum is 72.

The spelling of 99577954476 in words is "ninety-nine billion, five hundred seventy-seven million, nine hundred fifty-four thousand, four hundred seventy-six".