5266166723 has 4 divisors (see below), whose sum is σ = 5278735560. Its totient is φ = 5253597888.

The previous prime is 5266166713. The next prime is 5266166791. The reversal of 5266166723 is 3276616625.

It is a happy number.

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 5266166723 - 2⁴ = 5266166707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5266166713) 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, 6283790 + ... + 6284627.

It is an arithmetic number, because the mean of its divisors is an integer number (1319683890).

Almost surely, 2^5266166723 is an apocalyptic number.

5266166723 is a deficient number, since it is larger than the sum of its proper divisors (12568837).

5266166723 is a wasteful number, since it uses less digits than its factorization.

5266166723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12568836.

The product of its digits is 544320, while the sum is 44.

The square root of 5266166723 is about 72568.3589658744. The cubic root of 5266166723 is about 1739.7954930960.

The spelling of 5266166723 in words is "five billion, two hundred sixty-six million, one hundred sixty-six thousand, seven hundred twenty-three".