20314881180 has 216 divisors, whose sum is σ = 68885434800. Its totient is φ = 4841041920.

The previous prime is 20314881113. The next prime is 20314881193. The reversal of 20314881180 is 8118841302.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1277116 + ... + 1292924.

It is an arithmetic number, because the mean of its divisors is an integer number (318914050).

Almost surely, 2^20314881180 is an apocalyptic number.

20314881180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20314881180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34442717400).

20314881180 is an abundant number, since it is smaller than the sum of its proper divisors (48570553620).

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

20314881180 is a wasteful number, since it uses less digits than its factorization.

20314881180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15905 (or 15889 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The spelling of 20314881180 in words is "twenty billion, three hundred fourteen million, eight hundred eighty-one thousand, one hundred eighty".