266116454 has 4 divisors (see below), whose sum is σ = 399174684. Its totient is φ = 133058226.

The previous prime is 266116427. The next prime is 266116483. The reversal of 266116454 is 454611662.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66529112 + ... + 66529115.

It is an arithmetic number, because the mean of its divisors is an integer number (99793671).

Almost surely, 2^266116454 is an apocalyptic number.

266116454 is a deficient number, since it is larger than the sum of its proper divisors (133058230).

266116454 is a wasteful number, since it uses less digits than its factorization.

266116454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133058229.

The product of its digits is 34560, while the sum is 35.

The square root of 266116454 is about 16313.0761660700. The cubic root of 266116454 is about 643.2165978484.

The spelling of 266116454 in words is "two hundred sixty-six million, one hundred sixteen thousand, four hundred fifty-four".