166132772522 has 8 divisors (see below), whose sum is σ = 255277187172. Its totient is φ = 81040376800.

The previous prime is 166132772513. The next prime is 166132772543. The reversal of 166132772522 is 225277231661.

It can be written as a sum of positive squares in 2 ways, for example, as 165487053601 + 645718921 = 406801^2 + 25411^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1013004629 + ... + 1013004792.

Almost surely, 2^166132772522 is an apocalyptic number.

166132772522 is a deficient number, since it is larger than the sum of its proper divisors (89144414650).

166132772522 is a wasteful number, since it uses less digits than its factorization.

166132772522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026009464.

The product of its digits is 423360, while the sum is 44.

The spelling of 166132772522 in words is "one hundred sixty-six billion, one hundred thirty-two million, seven hundred seventy-two thousand, five hundred twenty-two".