32166644422464 has 70 divisors (see below), whose sum is σ = 95352010979874. Its totient is φ = 10722214805760.

The previous prime is 32166644422459. The next prime is 32166644422481. The reversal of 32166644422464 is 46422444666123.

It can be written as a sum of positive squares in only one way, i.e., 18833864040000 + 13332780382464 = 4339800^2 + 3651408^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 32166644422464.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3102487527 + ... + 3102497894.

Almost surely, 2^{32166644422464} is an apocalyptic number.

It is an amenable number.

32166644422464 is an abundant number, since it is smaller than the sum of its proper divisors (63185366557410).

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

32166644422464 is an equidigital number, since it uses as much as digits as its factorization.

32166644422464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6204985445 (or 6204985426 counting only the distinct ones).

The product of its digits is 31850496, while the sum is 54.

The spelling of 32166644422464 in words is "thirty-two trillion, one hundred sixty-six billion, six hundred forty-four million, four hundred twenty-two thousand, four hundred sixty-four".