20798149115180 has 48 divisors (see below), whose sum is σ = 43755497079840. Its totient is φ = 8304142130688.

The previous prime is 20798149115173. The next prime is 20798149115189. The reversal of 20798149115180 is 8151194189702.

It is not an unprimeable number, because it can be changed into a prime (20798149115189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108017474 + ... + 108209846.

It is an arithmetic number, because the mean of its divisors is an integer number (911572855830).

Almost surely, 2^{20798149115180} is an apocalyptic number.

20798149115180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20798149115180 is an abundant number, since it is smaller than the sum of its proper divisors (22957347964660).

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

20798149115180 is a wasteful number, since it uses less digits than its factorization.

20798149115180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202178 (or 202176 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 56.

The spelling of 20798149115180 in words is "twenty trillion, seven hundred ninety-eight billion, one hundred forty-nine million, one hundred fifteen thousand, one hundred eighty".