66525162322 has 4 divisors (see below), whose sum is σ = 99787743486. Its totient is φ = 33262581160.

The previous prime is 66525162317. The next prime is 66525162329. The reversal of 66525162322 is 22326152566.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22326152566 = 2 ⋅11163076283.

It can be written as a sum of positive squares in only one way, i.e., 65381978601 + 1143183721 = 255699^2 + 33811^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (66525162329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16631290579 + ... + 16631290582.

Almost surely, 2^66525162322 is an apocalyptic number.

66525162322 is a deficient number, since it is larger than the sum of its proper divisors (33262581164).

66525162322 is a wasteful number, since it uses less digits than its factorization.

66525162322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33262581163.

The product of its digits is 259200, while the sum is 40.

The spelling of 66525162322 in words is "sixty-six billion, five hundred twenty-five million, one hundred sixty-two thousand, three hundred twenty-two".