20253257410440 has 64 divisors (see below), whose sum is σ = 60862234118400. Its totient is φ = 5391760919552.

The previous prime is 20253257410423. The next prime is 20253257410493. The reversal of 20253257410440 is 4401475235202.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142236720 + ... + 142379039.

It is an arithmetic number, because the mean of its divisors is an integer number (950972408100).

Almost surely, 2^{20253257410440} is an apocalyptic number.

20253257410440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20253257410440 is an abundant number, since it is smaller than the sum of its proper divisors (40608976707960).

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

20253257410440 is a wasteful number, since it uses less digits than its factorization.

20253257410440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284616366 (or 284616362 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 39.

The spelling of 20253257410440 in words is "twenty trillion, two hundred fifty-three billion, two hundred fifty-seven million, four hundred ten thousand, four hundred forty".