266704868 has 6 divisors (see below), whose sum is σ = 466733526. Its totient is φ = 133352432.

The previous prime is 266704861. The next prime is 266704901. The reversal of 266704868 is 868407662.

It can be written as a sum of positive squares in only one way, i.e., 160985344 + 105719524 = 12688^2 + 10282^2 .

It is a super-2 number, since 2×266704868² = 142262973229794848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (266704861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33338105 + ... + 33338112.

It is an arithmetic number, because the mean of its divisors is an integer number (77788921).

Almost surely, 2^266704868 is an apocalyptic number.

It is an amenable number.

266704868 is a deficient number, since it is larger than the sum of its proper divisors (200028658).

266704868 is a wasteful number, since it uses less digits than its factorization.

266704868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66676221 (or 66676219 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 47.

The square root of 266704868 is about 16331.1012488442. The cubic root of 266704868 is about 643.6903240877.

The spelling of 266704868 in words is "two hundred sixty-six million, seven hundred four thousand, eight hundred sixty-eight".