20298791580 has 48 divisors (see below), whose sum is σ = 56846418720. Its totient is φ = 5412077568.

The previous prime is 20298791573. The next prime is 20298791609. The reversal of 20298791580 is 8519789202.

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, 365832 + ... + 417648.

It is an arithmetic number, because the mean of its divisors is an integer number (1184300390).

Almost surely, 2^20298791580 is an apocalyptic number.

20298791580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20298791580 is an abundant number, since it is smaller than the sum of its proper divisors (36547627140).

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

20298791580 is a wasteful number, since it uses less digits than its factorization.

20298791580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58358 (or 58356 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 51.

The spelling of 20298791580 in words is "twenty billion, two hundred ninety-eight million, seven hundred ninety-one thousand, five hundred eighty".