22493278545920 has 384 divisors, whose sum is σ = 66548407161600. Its totient is φ = 7105576697856.

The previous prime is 22493278545917. The next prime is 22493278545953. The reversal of 22493278545920 is 2954587239422.

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, 509694416 + ... + 509738544.

It is an arithmetic number, because the mean of its divisors is an integer number (173303143650).

Almost surely, 2^{22493278545920} is an apocalyptic number.

22493278545920 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 22493278545920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33274203580800).

22493278545920 is an abundant number, since it is smaller than the sum of its proper divisors (44055128615680).

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

22493278545920 is a wasteful number, since it uses less digits than its factorization.

22493278545920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44723 (or 44703 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 62.

The spelling of 22493278545920 in words is "twenty-two trillion, four hundred ninety-three billion, two hundred seventy-eight million, five hundred forty-five thousand, nine hundred twenty".