98651590117920 has 384 divisors, whose sum is σ = 394699269242880. Its totient is φ = 22543625825280.

The previous prime is 98651590117903. The next prime is 98651590118089. The reversal of 98651590117920 is 2971109515689.

98651590117920 is a `hidden beast` number, since 9 + 8 + 6 + 5 + 1 + 590 + 1 + 17 + 9 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 128773129 + ... + 129536951.

It is an arithmetic number, because the mean of its divisors is an integer number (1027862680320).

Almost surely, 2^{98651590117920} is an apocalyptic number.

98651590117920 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 98651590117920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197349634621440).

98651590117920 is an abundant number, since it is smaller than the sum of its proper divisors (296047679124960).

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

98651590117920 is a wasteful number, since it uses less digits than its factorization.

98651590117920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768125 (or 768111 counting only the distinct ones).

The product of its (nonzero) digits is 12247200, while the sum is 63.

The spelling of 98651590117920 in words is "ninety-eight trillion, six hundred fifty-one billion, five hundred ninety million, one hundred seventeen thousand, nine hundred twenty".