20925042791696 has 20 divisors (see below), whose sum is σ = 40546790953500. Its totient is φ = 10461354803712.

The previous prime is 20925042791663. The next prime is 20925042791743. The reversal of 20925042791696 is 69619724052902.

It can be written as a sum of positive squares in 2 ways, for example, as 8649269249296 + 12275773542400 = 2940964^2 + 3503680^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72764021 + ... + 73051028.

It is an arithmetic number, because the mean of its divisors is an integer number (2027339547675).

Almost surely, 2^{20925042791696} is an apocalyptic number.

It is an amenable number.

20925042791696 is a deficient number, since it is larger than the sum of its proper divisors (19621748161804).

20925042791696 is a wasteful number, since it uses less digits than its factorization.

20925042791696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145824026 (or 145824020 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 62.

The spelling of 20925042791696 in words is "twenty trillion, nine hundred twenty-five billion, forty-two million, seven hundred ninety-one thousand, six hundred ninety-six".