166764341 has 4 divisors (see below), whose sum is σ = 169910892. Its totient is φ = 163617792.

The previous prime is 166764337. The next prime is 166764359. The reversal of 166764341 is 143467661.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 76912900 + 89851441 = 8770^2 + 9479^2 .

It is a cyclic number.

It is not a de Polignac number, because 166764341 - 2² = 166764337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166764295 and 166764304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166764041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1573196 + ... + 1573301.

It is an arithmetic number, because the mean of its divisors is an integer number (42477723).

Almost surely, 2^166764341 is an apocalyptic number.

It is an amenable number.

166764341 is a deficient number, since it is larger than the sum of its proper divisors (3146551).

166764341 is an equidigital number, since it uses as much as digits as its factorization.

166764341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3146550.

The product of its digits is 72576, while the sum is 38.

The square root of 166764341 is about 12913.7268439440. The cubic root of 166764341 is about 550.4286916693.

The spelling of 166764341 in words is "one hundred sixty-six million, seven hundred sixty-four thousand, three hundred forty-one".