91098334020 has 24 divisors (see below), whose sum is σ = 255075335424. Its totient is φ = 24292889056.

The previous prime is 91098334007. The next prime is 91098334031. The reversal of 91098334020 is 2043389019.

It is a super-2 number, since 2×91098334020² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 91098334020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 759152724 + ... + 759152843.

It is an arithmetic number, because the mean of its divisors is an integer number (10628138976).

Almost surely, 2^91098334020 is an apocalyptic number.

It is an amenable number.

91098334020 is an abundant number, since it is smaller than the sum of its proper divisors (163977001404).

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

91098334020 is a wasteful number, since it uses less digits than its factorization.

91098334020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518305579 (or 1518305577 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The spelling of 91098334020 in words is "ninety-one billion, ninety-eight million, three hundred thirty-four thousand, twenty".