20122857344580 has 96 divisors (see below), whose sum is σ = 57374666350848. Its totient is φ = 5268563865600.

The previous prime is 20122857344543. The next prime is 20122857344593. The reversal of 20122857344580 is 8544375822102.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8773497 + ... + 10826816.

It is an arithmetic number, because the mean of its divisors is an integer number (597652774488).

Almost surely, 2^{20122857344580} is an apocalyptic number.

20122857344580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122857344580 is an abundant number, since it is smaller than the sum of its proper divisors (37251809006268).

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

20122857344580 is a wasteful number, since it uses less digits than its factorization.

20122857344580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19600637 (or 19600635 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 51.

The spelling of 20122857344580 in words is "twenty trillion, one hundred twenty-two billion, eight hundred fifty-seven million, three hundred forty-four thousand, five hundred eighty".