2164512706 has 4 divisors (see below), whose sum is σ = 3246769062. Its totient is φ = 1082256352.

The previous prime is 2164512683. The next prime is 2164512751. The reversal of 2164512706 is 6072154612.

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

It can be written as a sum of positive squares in only one way, i.e., 1200969025 + 963543681 = 34655^2 + 31041^2 .

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 as a sum of consecutive naturals, namely, 541128175 + ... + 541128178.

Almost surely, 2^2164512706 is an apocalyptic number.

2164512706 is a deficient number, since it is larger than the sum of its proper divisors (1082256356).

2164512706 is a wasteful number, since it uses less digits than its factorization.

2164512706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082256355.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 2164512706 is about 46524.3238102393. The cubic root of 2164512706 is about 1293.5604036041.

The spelling of 2164512706 in words is "two billion, one hundred sixty-four million, five hundred twelve thousand, seven hundred six".