20254309998120 has 384 divisors, whose sum is σ = 74235553660800. Its totient is φ = 4908445470720.

The previous prime is 20254309998103. The next prime is 20254309998133. The reversal of 20254309998120 is 2189990345202.

20254309998120 is a `hidden beast` number, since 2 + 0 + 2 + 543 + 0 + 9 + 9 + 98 + 1 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 402861304 + ... + 402911576.

It is an arithmetic number, because the mean of its divisors is an integer number (193321754325).

Almost surely, 2^{20254309998120} is an apocalyptic number.

20254309998120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20254309998120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37117776830400).

20254309998120 is an abundant number, since it is smaller than the sum of its proper divisors (53981243662680).

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

20254309998120 is a wasteful number, since it uses less digits than its factorization.

20254309998120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53398 (or 53377 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 20254309998120 in words is "twenty trillion, two hundred fifty-four billion, three hundred nine million, nine hundred ninety-eight thousand, one hundred twenty".