22146312880 has 40 divisors (see below), whose sum is σ = 52461700272. Its totient is φ = 8691381504.

The previous prime is 22146312857. The next prime is 22146312899. The reversal of 22146312880 is 8821364122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2607354 + ... + 2615833.

Almost surely, 2^22146312880 is an apocalyptic number.

22146312880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22146312880 is an abundant number, since it is smaller than the sum of its proper divisors (30315387392).

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

22146312880 is a wasteful number, since it uses less digits than its factorization.

22146312880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5223253 (or 5223247 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The spelling of 22146312880 in words is "twenty-two billion, one hundred forty-six million, three hundred twelve thousand, eight hundred eighty".