22163266631540 has 12 divisors (see below), whose sum is σ = 46542859926276. Its totient is φ = 8865306652608.

The previous prime is 22163266631501. The next prime is 22163266631543. The reversal of 22163266631540 is 4513666236122.

It can be written as a sum of positive squares in 2 ways, for example, as 3728506112356 + 18434760519184 = 1930934^2 + 4293572^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22163266631543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554081665769 + ... + 554081665808.

It is an arithmetic number, because the mean of its divisors is an integer number (3878571660523).

Almost surely, 2^{22163266631540} is an apocalyptic number.

22163266631540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22163266631540 is an abundant number, since it is smaller than the sum of its proper divisors (24379593294736).

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

22163266631540 is a wasteful number, since it uses less digits than its factorization.

22163266631540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108163331586 (or 1108163331584 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 22163266631540 in words is "twenty-two trillion, one hundred sixty-three billion, two hundred sixty-six million, six hundred thirty-one thousand, five hundred forty".