22977146880 has 572 divisors, whose sum is σ = 87060173160. Its totient is φ = 5804752896.

The previous prime is 22977146873. The next prime is 22977146911. The reversal of 22977146880 is 8864177922.

It is a happy number.

22977146880 is a `hidden beast` number, since 22 + 97 + 71 + 468 + 8 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 43 ways as a sum of consecutive naturals, for example, 1209323511 + ... + 1209323529.

Almost surely, 2^22977146880 is an apocalyptic number.

22977146880 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 22977146880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43530086580).

22977146880 is an abundant number, since it is smaller than the sum of its proper divisors (64083026280).

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

22977146880 is an frugal number, since it uses more digits than its factorization.

22977146880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 29 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 22977146880 in words is "twenty-two billion, nine hundred seventy-seven million, one hundred forty-six thousand, eight hundred eighty".