198295398220740 has 96 divisors (see below), whose sum is σ = 558693681401856. Its totient is φ = 52549454263680.

The previous prime is 198295398220723. The next prime is 198295398220781. The reversal of 198295398220740 is 47022893592891.

It is a super-2 number, since 2×198295398220740² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5337502 + ... + 20617461.

It is an arithmetic number, because the mean of its divisors is an integer number (5819725847936).

Almost surely, 2^{198295398220740} is an apocalyptic number.

198295398220740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198295398220740 is an abundant number, since it is smaller than the sum of its proper divisors (360398283181116).

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

198295398220740 is a wasteful number, since it uses less digits than its factorization.

198295398220740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25955769 (or 25955767 counting only the distinct ones).

The product of its (nonzero) digits is 156764160, while the sum is 69.

The spelling of 198295398220740 in words is "one hundred ninety-eight trillion, two hundred ninety-five billion, three hundred ninety-eight million, two hundred twenty thousand, seven hundred forty".