20344512126198 has 32 divisors (see below), whose sum is σ = 43819919410176. Its totient is φ = 6259711282848.

The previous prime is 20344512126179. The next prime is 20344512126217. The reversal of 20344512126198 is 89162121544302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20344512126179) and next prime (20344512126217).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 686011 + ... + 6415577.

It is an arithmetic number, because the mean of its divisors is an integer number (1369372481568).

Almost surely, 2^{20344512126198} is an apocalyptic number.

20344512126198 is an abundant number, since it is smaller than the sum of its proper divisors (23475407283978).

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

20344512126198 is a wasteful number, since it uses less digits than its factorization.

20344512126198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5775108.

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 20344512126198 in words is "twenty trillion, three hundred forty-four billion, five hundred twelve million, one hundred twenty-six thousand, one hundred ninety-eight".