166546345 has 12 divisors (see below), whose sum is σ = 232485444. Its totient is φ = 114203040.

The previous prime is 166546319. The next prime is 166546351. The reversal of 166546345 is 543645661.

It can be written as a sum of positive squares in 2 ways, for example, as 73770921 + 92775424 = 8589^2 + 9632^2 .

It is not a de Polignac number, because 166546345 - 2⁵ = 166546313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166546298 and 166546307.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 339646 + ... + 340135.

It is an arithmetic number, because the mean of its divisors is an integer number (19373787).

Almost surely, 2^166546345 is an apocalyptic number.

It is an amenable number.

166546345 is a deficient number, since it is larger than the sum of its proper divisors (65939099).

166546345 is an equidigital number, since it uses as much as digits as its factorization.

166546345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679800 (or 679793 counting only the distinct ones).

The product of its digits is 259200, while the sum is 40.

The square root of 166546345 is about 12905.2836078871. The cubic root of 166546345 is about 550.1887451377.

The spelling of 166546345 in words is "one hundred sixty-six million, five hundred forty-six thousand, three hundred forty-five".