20028795438960 has 320 divisors, whose sum is σ = 86011104936960. Its totient is φ = 4161827589120.

The previous prime is 20028795438959. The next prime is 20028795438961. The reversal of 20028795438960 is 6983459782002.

20028795438960 is a `hidden beast` number, since 2 + 0 + 0 + 2 + 8 + 7 + 9 + 543 + 89 + 6 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (20028795438959) and next prime (20028795438961).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20028795438961) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 60045307 + ... + 60377946.

It is an arithmetic number, because the mean of its divisors is an integer number (268784702928).

Almost surely, 2^{20028795438960} is an apocalyptic number.

20028795438960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20028795438960 is an abundant number, since it is smaller than the sum of its proper divisors (65982309498000).

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

20028795438960 is a wasteful number, since it uses less digits than its factorization.

20028795438960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120423293 (or 120423281 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 20028795438960 in words is "twenty trillion, twenty-eight billion, seven hundred ninety-five million, four hundred thirty-eight thousand, nine hundred sixty".