3166543645 has 4 divisors (see below), whose sum is σ = 3799852380. Its totient is φ = 2533234912.

The previous prime is 3166543637. The next prime is 3166543651. The reversal of 3166543645 is 5463456613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5463456613 = 2213 ⋅2468801.

It can be written as a sum of positive squares in 2 ways, for example, as 832784164 + 2333759481 = 28858^2 + 48309^2 .

It is a cyclic number.

It is not a de Polignac number, because 3166543645 - 2³ = 3166543637 is a prime.

It is a congruent 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, 316654360 + ... + 316654369.

It is an arithmetic number, because the mean of its divisors is an integer number (949963095).

Almost surely, 2^3166543645 is an apocalyptic number.

It is an amenable number.

3166543645 is a deficient number, since it is larger than the sum of its proper divisors (633308735).

3166543645 is an equidigital number, since it uses as much as digits as its factorization.

3166543645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633308734.

The product of its digits is 777600, while the sum is 43.

The square root of 3166543645 is about 56272.0503003045. The cubic root of 3166543645 is about 1468.4590026304.

The spelling of 3166543645 in words is "three billion, one hundred sixty-six million, five hundred forty-three thousand, six hundred forty-five".