426665111 has 8 divisors (see below), whose sum is σ = 446995584. Its totient is φ = 406483000.

The previous prime is 426665101. The next prime is 426665117. The reversal of 426665111 is 111566624.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 426665111 - 2⁶ = 426665047 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 (426665117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31181 + ... + 42726.

It is an arithmetic number, because the mean of its divisors is an integer number (55874448).

Almost surely, 2^426665111 is an apocalyptic number.

426665111 is a deficient number, since it is larger than the sum of its proper divisors (20330473).

426665111 is a wasteful number, since it uses less digits than its factorization.

426665111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74181.

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

The square root of 426665111 is about 20655.8735230442. The cubic root of 426665111 is about 752.8279081422.

The spelling of 426665111 in words is "four hundred twenty-six million, six hundred sixty-five thousand, one hundred eleven".