22166748664532 has 24 divisors (see below), whose sum is σ = 39739462765800. Its totient is φ = 10812637002240.

The previous prime is 22166748664477. The next prime is 22166748664537. The reversal of 22166748664532 is 23546684766122.

It can be written as a sum of positive squares in 4 ways, for example, as 138238214416 + 22028510450116 = 371804^2 + 4693454^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22166748664537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1779344 + ... + 6891992.

It is an arithmetic number, because the mean of its divisors is an integer number (1655810948575).

Almost surely, 2^{22166748664532} is an apocalyptic number.

It is an amenable number.

22166748664532 is a deficient number, since it is larger than the sum of its proper divisors (17572714101268).

22166748664532 is a wasteful number, since it uses less digits than its factorization.

22166748664532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5139131 (or 5139129 counting only the distinct ones).

The product of its digits is 139345920, while the sum is 62.

The spelling of 22166748664532 in words is "twenty-two trillion, one hundred sixty-six billion, seven hundred forty-eight million, six hundred sixty-four thousand, five hundred thirty-two".