99014192640 has 800 divisors, whose sum is σ = 392287142016. Its totient is φ = 23668899840.

The previous prime is 99014192633. The next prime is 99014192653. The reversal of 99014192640 is 4629141099.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 189319419 + ... + 189319941.

Almost surely, 2^99014192640 is an apocalyptic number.

99014192640 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99014192640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196143571008).

99014192640 is an abundant number, since it is smaller than the sum of its proper divisors (293272949376).

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

99014192640 is a wasteful number, since it uses less digits than its factorization.

99014192640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The spelling of 99014192640 in words is "ninety-nine billion, fourteen million, one hundred ninety-two thousand, six hundred forty".