22775920145880 has 384 divisors, whose sum is σ = 77130502525440. Its totient is φ = 5335758489600.

The previous prime is 22775920145851. The next prime is 22775920145887. The reversal of 22775920145880 is 8854102957722.

It is a happy number.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22775920145887) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 922201692 + ... + 922226388.

It is an arithmetic number, because the mean of its divisors is an integer number (200860683660).

Almost surely, 2^{22775920145880} is an apocalyptic number.

22775920145880 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 22775920145880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38565251262720).

22775920145880 is an abundant number, since it is smaller than the sum of its proper divisors (54354582379560).

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

22775920145880 is a wasteful number, since it uses less digits than its factorization.

22775920145880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25511 (or 25476 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 60.

The spelling of 22775920145880 in words is "twenty-two trillion, seven hundred seventy-five billion, nine hundred twenty million, one hundred forty-five thousand, eight hundred eighty".