2164636436 has 24 divisors (see below), whose sum is σ = 3829126560. Its totient is φ = 1070656992.

The previous prime is 2164636433. The next prime is 2164636511. The reversal of 2164636436 is 6346364612.

It is a junction number, because it is equal to n+sod(n) for n = 2164636393 and 2164636402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164636433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150470 + ... + 164226.

It is an arithmetic number, because the mean of its divisors is an integer number (159546940).

Almost surely, 2^2164636436 is an apocalyptic number.

It is an amenable number.

2164636436 is a deficient number, since it is larger than the sum of its proper divisors (1664490124).

2164636436 is a wasteful number, since it uses less digits than its factorization.

2164636436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14183 (or 14181 counting only the distinct ones).

The product of its digits is 373248, while the sum is 41.

The square root of 2164636436 is about 46525.6535257701. The cubic root of 2164636436 is about 1293.5850510577.

The spelling of 2164636436 in words is "two billion, one hundred sixty-four million, six hundred thirty-six thousand, four hundred thirty-six".