2664551111 has 4 divisors (see below), whose sum is σ = 2664711000. Its totient is φ = 2664391224.

The previous prime is 2664551077. The next prime is 2664551171. The reversal of 2664551111 is 1111554662.

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

It is a cyclic number.

It is not a de Polignac number, because 2664551111 - 2⁶ = 2664551047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664551171) 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, 51596 + ... + 89393.

It is an arithmetic number, because the mean of its divisors is an integer number (666177750).

Almost surely, 2^2664551111 is an apocalyptic number.

2664551111 is a deficient number, since it is larger than the sum of its proper divisors (159889).

2664551111 is a wasteful number, since it uses less digits than its factorization.

2664551111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159888.

The product of its digits is 7200, while the sum is 32.

The square root of 2664551111 is about 51619.2901055410. The cubic root of 2664551111 is about 1386.3557405905.

It can be divided in two parts, 2664551 and 111, that added together give a palindrome (2664662).

The spelling of 2664551111 in words is "two billion, six hundred sixty-four million, five hundred fifty-one thousand, one hundred eleven".