166726880466 has 32 divisors (see below), whose sum is σ = 335598664128. Its totient is φ = 55218697920.

The previous prime is 166726880387. The next prime is 166726880491. The reversal of 166726880466 is 664088627661.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1144341 + ... + 1281783.

It is an arithmetic number, because the mean of its divisors is an integer number (10487458254).

Almost surely, 2^166726880466 is an apocalyptic number.

166726880466 is an abundant number, since it is smaller than the sum of its proper divisors (168871783662).

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

166726880466 is a wasteful number, since it uses less digits than its factorization.

166726880466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138746.

The product of its (nonzero) digits is 27869184, while the sum is 60.

The spelling of 166726880466 in words is "one hundred sixty-six billion, seven hundred twenty-six million, eight hundred eighty thousand, four hundred sixty-six".