166502779266 has 8 divisors (see below), whose sum is σ = 333005558544. Its totient is φ = 55500926420.

The previous prime is 166502779253. The next prime is 166502779271. The reversal of 166502779266 is 662977205661.

166502779266 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

166502779266 is an admirable number.

It is a Curzon number.

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, 13875231600 + ... + 13875231611.

It is an arithmetic number, because the mean of its divisors is an integer number (41625694818).

Almost surely, 2^166502779266 is an apocalyptic number.

166502779266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

166502779266 is a wasteful number, since it uses less digits than its factorization.

166502779266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27750463216.

The product of its (nonzero) digits is 11430720, while the sum is 57.

The spelling of 166502779266 in words is "one hundred sixty-six billion, five hundred two million, seven hundred seventy-nine thousand, two hundred sixty-six".