266923156 has 12 divisors (see below), whose sum is σ = 467396020. Its totient is φ = 133381440.

The previous prime is 266923133. The next prime is 266923159. The reversal of 266923156 is 651329662.

266923156 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 40119556 + 226803600 = 6334^2 + 15060^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266923159) 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, 12201 + ... + 26128.

Almost surely, 2^266923156 is an apocalyptic number.

It is an amenable number.

266923156 is a deficient number, since it is larger than the sum of its proper divisors (200472864).

266923156 is a wasteful number, since it uses less digits than its factorization.

266923156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40074 (or 40072 counting only the distinct ones).

The product of its digits is 116640, while the sum is 40.

The square root of 266923156 is about 16337.7830809446. The cubic root of 266923156 is about 643.8658883833.

The spelling of 266923156 in words is "two hundred sixty-six million, nine hundred twenty-three thousand, one hundred fifty-six".