22641520420 has 24 divisors (see below), whose sum is σ = 47573523648. Its totient is φ = 9051592800.

The previous prime is 22641520409. The next prime is 22641520469. The reversal of 22641520420 is 2402514622.

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, 276336 + ... + 348775.

It is an arithmetic number, because the mean of its divisors is an integer number (1982230152).

Almost surely, 2^22641520420 is an apocalyptic number.

22641520420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22641520420 is an abundant number, since it is smaller than the sum of its proper divisors (24932003228).

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

22641520420 is a wasteful number, since it uses less digits than its factorization.

22641520420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626931 (or 626929 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The spelling of 22641520420 in words is "twenty-two billion, six hundred forty-one million, five hundred twenty thousand, four hundred twenty".