166341352261 has 8 divisors (see below), whose sum is σ = 198369811584. Its totient is φ = 136379245200.

The previous prime is 166341352249. The next prime is 166341352267. The reversal of 166341352261 is 162253143661.

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

It is not a de Polignac number, because 166341352261 - 2¹⁵ = 166341319493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166341352267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516587890 + ... + 516588211.

It is an arithmetic number, because the mean of its divisors is an integer number (24796226448).

Almost surely, 2^166341352261 is an apocalyptic number.

It is an amenable number.

166341352261 is a deficient number, since it is larger than the sum of its proper divisors (32028459323).

166341352261 is a wasteful number, since it uses less digits than its factorization.

166341352261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033176131.

The product of its digits is 155520, while the sum is 40.

The spelling of 166341352261 in words is "one hundred sixty-six billion, three hundred forty-one million, three hundred fifty-two thousand, two hundred sixty-one".