20748880080 has 320 divisors, whose sum is σ = 75652300800. Its totient is φ = 5212408320.

The previous prime is 20748880039. The next prime is 20748880093. The reversal of 20748880080 is 8008884702.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7837317 + ... + 7839963.

It is an arithmetic number, because the mean of its divisors is an integer number (236413440).

Almost surely, 2^20748880080 is an apocalyptic number.

20748880080 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 20748880080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37826150400).

20748880080 is an abundant number, since it is smaller than the sum of its proper divisors (54903420720).

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

20748880080 is a wasteful number, since it uses less digits than its factorization.

20748880080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2879 (or 2867 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 45.

The spelling of 20748880080 in words is "twenty billion, seven hundred forty-eight million, eight hundred eighty thousand, eighty".