20776752480 has 96 divisors (see below), whose sum is σ = 71396494848. Its totient is φ = 5036787200.

The previous prime is 20776752463. The next prime is 20776752481. The reversal of 20776752480 is 8425767702.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20776752481) 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, 1962216 + ... + 1972775.

It is an arithmetic number, because the mean of its divisors is an integer number (743713488).

Almost surely, 2^20776752480 is an apocalyptic number.

20776752480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20776752480 is an abundant number, since it is smaller than the sum of its proper divisors (50619742368).

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

20776752480 is a wasteful number, since it uses less digits than its factorization.

20776752480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3935020 (or 3935012 counting only the distinct ones).

The product of its (nonzero) digits is 1317120, while the sum is 48.

The spelling of 20776752480 in words is "twenty billion, seven hundred seventy-six million, seven hundred fifty-two thousand, four hundred eighty".