22561466540020 has 48 divisors (see below), whose sum is σ = 47783498450688. Its totient is φ = 8947677847680.

The previous prime is 22561466540017. The next prime is 22561466540023. The reversal of 22561466540020 is 2004566416522.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22561466540017) and next prime (22561466540023).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22561466540023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 928092 + ... + 6781171.

It is an arithmetic number, because the mean of its divisors is an integer number (995489551056).

Almost surely, 2^{22561466540020} is an apocalyptic number.

22561466540020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22561466540020 is an abundant number, since it is smaller than the sum of its proper divisors (25222031910668).

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

22561466540020 is a wasteful number, since it uses less digits than its factorization.

22561466540020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7710520 (or 7710518 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 22561466540020 in words is "twenty-two trillion, five hundred sixty-one billion, four hundred sixty-six million, five hundred forty thousand, twenty".