2643584164 has 24 divisors (see below), whose sum is σ = 4983793920. Its totient is φ = 1219710624.

The previous prime is 2643584159. The next prime is 2643584219. The reversal of 2643584164 is 4614853462.

It is a self number, because there is not a number n which added to its sum of digits gives 2643584164.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197517 + ... + 210475.

It is an arithmetic number, because the mean of its divisors is an integer number (207658080).

Almost surely, 2^2643584164 is an apocalyptic number.

It is an amenable number.

2643584164 is a deficient number, since it is larger than the sum of its proper divisors (2340209756).

2643584164 is a wasteful number, since it uses less digits than its factorization.

2643584164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16899 (or 16897 counting only the distinct ones).

The product of its digits is 552960, while the sum is 43.

The square root of 2643584164 is about 51415.7968332691. The cubic root of 2643584164 is about 1382.7098199899.

The spelling of 2643584164 in words is "two billion, six hundred forty-three million, five hundred eighty-four thousand, one hundred sixty-four".