98517220542 has 160 divisors (see below), whose sum is σ = 240535206912. Its totient is φ = 29957630976.

The previous prime is 98517220519. The next prime is 98517220561. The reversal of 98517220542 is 24502271589.

98517220542 is a `hidden beast` number, since 9 + 85 + 1 + 7 + 2 + 20 + 542 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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, 90134148 + ... + 90135240.

Almost surely, 2^98517220542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98517220542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120267603456).

98517220542 is an abundant number, since it is smaller than the sum of its proper divisors (142017986370).

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

98517220542 is a wasteful number, since it uses less digits than its factorization.

98517220542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1584 (or 1575 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 98517220542 in words is "ninety-eight billion, five hundred seventeen million, two hundred twenty thousand, five hundred forty-two".