20941320875 has 8 divisors (see below), whose sum is σ = 26134768608. Its totient is φ = 16753056600.

The previous prime is 20941320847. The next prime is 20941320941. The reversal of 20941320875 is 57802314902.

It is not a de Polignac number, because 20941320875 - 2¹⁴ = 20941304491 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83765159 + ... + 83765408.

It is an arithmetic number, because the mean of its divisors is an integer number (3266846076).

Almost surely, 2^20941320875 is an apocalyptic number.

20941320875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20941320875 is a deficient number, since it is larger than the sum of its proper divisors (5193447733).

20941320875 is an equidigital number, since it uses as much as digits as its factorization.

20941320875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167530582 (or 167530572 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 20941320875 in words is "twenty billion, nine hundred forty-one million, three hundred twenty thousand, eight hundred seventy-five".