2164672511 has 4 divisors (see below), whose sum is σ = 2178460392. Its totient is φ = 2150884632.

The previous prime is 2164672483. The next prime is 2164672513. The reversal of 2164672511 is 1152764612.

2164672511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2164672511 is a prime.

It is a super-3 number, since 3×2164672511³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164672513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6893705 + ... + 6894018.

It is an arithmetic number, because the mean of its divisors is an integer number (544615098).

Almost surely, 2^2164672511 is an apocalyptic number.

2164672511 is a deficient number, since it is larger than the sum of its proper divisors (13787881).

2164672511 is a wasteful number, since it uses less digits than its factorization.

2164672511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13787880.

The product of its digits is 20160, while the sum is 35.

The square root of 2164672511 is about 46526.0412134968. The cubic root of 2164672511 is about 1293.5922371484.

The spelling of 2164672511 in words is "two billion, one hundred sixty-four million, six hundred seventy-two thousand, five hundred eleven".