20492201918560 has 24 divisors (see below), whose sum is σ = 48412827032976. Its totient is φ = 8196880767360.

The previous prime is 20492201918557. The next prime is 20492201918563. The reversal of 20492201918560 is 6581910229402.

It is an interprime number because it is at equal distance from previous prime (20492201918557) and next prime (20492201918563).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20492201918563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64038130836 + ... + 64038131155.

It is an arithmetic number, because the mean of its divisors is an integer number (2017201126374).

Almost surely, 2^{20492201918560} is an apocalyptic number.

20492201918560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20492201918560 is an abundant number, since it is smaller than the sum of its proper divisors (27920625114416).

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

20492201918560 is a wasteful number, since it uses less digits than its factorization.

20492201918560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128076262006 (or 128076261998 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 20492201918560 in words is "twenty trillion, four hundred ninety-two billion, two hundred one million, nine hundred eighteen thousand, five hundred sixty".