20875078056 has 96 divisors (see below), whose sum is σ = 63358021440. Its totient is φ = 5613453312.

The previous prime is 20875078051. The next prime is 20875078069. The reversal of 20875078056 is 65087057802.

It is a junction number, because it is equal to n+sod(n) for n = 20875077996 and 20875078014.

It is not an unprimeable number, because it can be changed into a prime (20875078051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166425 + ... + 263528.

It is an arithmetic number, because the mean of its divisors is an integer number (659979390).

Almost surely, 2^20875078056 is an apocalyptic number.

It is an amenable number.

20875078056 is an abundant number, since it is smaller than the sum of its proper divisors (42482943384).

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

20875078056 is a wasteful number, since it uses less digits than its factorization.

20875078056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430003 (or 429982 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 48.

The spelling of 20875078056 in words is "twenty billion, eight hundred seventy-five million, seventy-eight thousand, fifty-six".