2100164506 has 32 divisors (see below), whose sum is σ = 3658219200. Its totient is φ = 894199680.

The previous prime is 2100164503. The next prime is 2100164509. The reversal of 2100164506 is 6054610012.

It is an interprime number because it is at equal distance from previous prime (2100164503) and next prime (2100164509).

It is not an unprimeable number, because it can be changed into a prime (2100164503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8976 + ... + 65428.

It is an arithmetic number, because the mean of its divisors is an integer number (114319350).

Almost surely, 2^2100164506 is an apocalyptic number.

2100164506 is a deficient number, since it is larger than the sum of its proper divisors (1558054694).

2100164506 is a wasteful number, since it uses less digits than its factorization.

2100164506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56574.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2100164506 is about 45827.5518220208. The cubic root of 2100164506 is about 1280.6126026788.

Adding to 2100164506 its reverse (6054610012), we get a palindrome (8154774518).

The spelling of 2100164506 in words is "two billion, one hundred million, one hundred sixty-four thousand, five hundred six".