998745093220 has 96 divisors (see below), whose sum is σ = 2483041962240. Its totient is φ = 330321192960.

The previous prime is 998745093191. The next prime is 998745093221. The reversal of 998745093220 is 22390547899.

It is a super-2 number, since 2×998745093220² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (998745093221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 466654 + ... + 1488373.

It is an arithmetic number, because the mean of its divisors is an integer number (25865020440).

Almost surely, 2^998745093220 is an apocalyptic number.

It is an amenable number.

998745093220 is an abundant number, since it is smaller than the sum of its proper divisors (1484296869020).

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

998745093220 is a wasteful number, since it uses less digits than its factorization.

998745093220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955173 (or 1955171 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 998745093220 in words is "nine hundred ninety-eight billion, seven hundred forty-five million, ninety-three thousand, two hundred twenty".