98556272640 has 896 divisors, whose sum is σ = 415210752000. Its totient is φ = 21700804608.

The previous prime is 98556272621. The next prime is 98556272677. The reversal of 98556272640 is 4627265589.

98556272640 is a `hidden beast` number, since 9 + 8 + 5 + 5 + 627 + 2 + 6 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (896).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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, 224501541 + ... + 224501979.

Almost surely, 2^98556272640 is an apocalyptic number.

98556272640 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 98556272640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207605376000).

98556272640 is an abundant number, since it is smaller than the sum of its proper divisors (316654479360).

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

98556272640 is a wasteful number, since it uses less digits than its factorization.

98556272640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 98556272640 in words is "ninety-eight billion, five hundred fifty-six million, two hundred seventy-two thousand, six hundred forty".