22066252400 has 60 divisors (see below), whose sum is σ = 54447023352. Its totient is φ = 8587941120.

The previous prime is 22066252391. The next prime is 22066252421. The reversal of 22066252400 is 425266022.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 730682 + ... + 760281.

Almost surely, 2^22066252400 is an apocalyptic number.

22066252400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22066252400 is an abundant number, since it is smaller than the sum of its proper divisors (32380770952).

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

22066252400 is a wasteful number, since it uses less digits than its factorization.

22066252400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491018 (or 1491007 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The spelling of 22066252400 in words is "twenty-two billion, sixty-six million, two hundred fifty-two thousand, four hundred".