22451672620 has 48 divisors (see below), whose sum is σ = 53447718240. Its totient is φ = 7853538816.

The previous prime is 22451672587. The next prime is 22451672629. The reversal of 22451672620 is 2627615422.

It is a self number, because there is not a number n which added to its sum of digits gives 22451672620.

It is not an unprimeable number, because it can be changed into a prime (22451672629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2267497 + ... + 2277376.

It is an arithmetic number, because the mean of its divisors is an integer number (1113494130).

Almost surely, 2^22451672620 is an apocalyptic number.

22451672620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22451672620 is an abundant number, since it is smaller than the sum of its proper divisors (30996045620).

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

22451672620 is a wasteful number, since it uses less digits than its factorization.

22451672620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4544914 (or 4544912 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 22451672620 in words is "twenty-two billion, four hundred fifty-one million, six hundred seventy-two thousand, six hundred twenty".