3164646643 has 4 divisors (see below), whose sum is σ = 3164896528. Its totient is φ = 3164396760.

The previous prime is 3164646581. The next prime is 3164646647. The reversal of 3164646643 is 3466464613.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3164646643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3164646643.

It is not an unprimeable number, because it can be changed into a prime (3164646647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104871 + ... + 131632.

It is an arithmetic number, because the mean of its divisors is an integer number (791224132).

Almost surely, 2^3164646643 is an apocalyptic number.

3164646643 is a deficient number, since it is larger than the sum of its proper divisors (249885).

3164646643 is a wasteful number, since it uses less digits than its factorization.

3164646643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249884.

The product of its digits is 746496, while the sum is 43.

The square root of 3164646643 is about 56255.1921425925. The cubic root of 3164646643 is about 1468.1657042753.

The spelling of 3164646643 in words is "three billion, one hundred sixty-four million, six hundred forty-six thousand, six hundred forty-three".