2164336605 has 96 divisors (see below), whose sum is σ = 4015484928. Its totient is φ = 1117800000.

The previous prime is 2164336597. The next prime is 2164336619. The reversal of 2164336605 is 5066334612.

2164336605 is a `hidden beast` number, since 2 + 1 + 6 + 43 + 3 + 6 + 605 = 666.

It is not a de Polignac number, because 2164336605 - 2³ = 2164336597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2164336605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8622730 + ... + 8622980.

It is an arithmetic number, because the mean of its divisors is an integer number (41827968).

Almost surely, 2^2164336605 is an apocalyptic number.

It is an amenable number.

2164336605 is a deficient number, since it is larger than the sum of its proper divisors (1851148323).

2164336605 is a wasteful number, since it uses less digits than its factorization.

2164336605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 2164336605 is about 46522.4312025930. The cubic root of 2164336605 is about 1293.5253220424.

The spelling of 2164336605 in words is "two billion, one hundred sixty-four million, three hundred thirty-six thousand, six hundred five".