99690043488 has 192 divisors, whose sum is σ = 305215464960. Its totient is φ = 27901440000.

The previous prime is 99690043459. The next prime is 99690043507. The reversal of 99690043488 is 88434009699.

It is a super-2 number, since 2×99690043488² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 10284148 + ... + 10293836.

It is an arithmetic number, because the mean of its divisors is an integer number (1589663880).

Almost surely, 2^99690043488 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 99690043488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152607732480).

99690043488 is an abundant number, since it is smaller than the sum of its proper divisors (205525421472).

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

99690043488 is a wasteful number, since it uses less digits than its factorization.

99690043488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10021 (or 10013 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 60.

The spelling of 99690043488 in words is "ninety-nine billion, six hundred ninety million, forty-three thousand, four hundred eighty-eight".