2054666111 has 4 divisors (see below), whose sum is σ = 2088349224. Its totient is φ = 2020983000.

The previous prime is 2054666093. The next prime is 2054666123. The reversal of 2054666111 is 1116664502.

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-2054666111 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 (2054666011) 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, 16841465 + ... + 16841586.

It is an arithmetic number, because the mean of its divisors is an integer number (522087306).

Almost surely, 2^2054666111 is an apocalyptic number.

2054666111 is a deficient number, since it is larger than the sum of its proper divisors (33683113).

2054666111 is an equidigital number, since it uses as much as digits as its factorization.

2054666111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33683112.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 2054666111 is about 45328.4249781525. The cubic root of 2054666111 is about 1271.2971867970.

The spelling of 2054666111 in words is "two billion, fifty-four million, six hundred sixty-six thousand, one hundred eleven".