22054640520 has 64 divisors (see below), whose sum is σ = 72178827840. Its totient is φ = 5346579200.

The previous prime is 22054640519. The next prime is 22054640533. The reversal of 22054640520 is 2504645022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8352711 + ... + 8355350.

It is an arithmetic number, because the mean of its divisors is an integer number (1127794185).

Almost surely, 2^22054640520 is an apocalyptic number.

22054640520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22054640520 is an abundant number, since it is smaller than the sum of its proper divisors (50124187320).

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

22054640520 is a wasteful number, since it uses less digits than its factorization.

22054640520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16708086 (or 16708082 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The spelling of 22054640520 in words is "twenty-two billion, fifty-four million, six hundred forty thousand, five hundred twenty".