266944156 has 12 divisors (see below), whose sum is σ = 469950768. Its totient is φ = 132672512.

The previous prime is 266944151. The next prime is 266944163. The reversal of 266944156 is 651449662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266944151) 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, 199141 + ... + 200476.

It is an arithmetic number, because the mean of its divisors is an integer number (39162564).

Almost surely, 2^266944156 is an apocalyptic number.

It is an amenable number.

266944156 is a deficient number, since it is larger than the sum of its proper divisors (203006612).

266944156 is a wasteful number, since it uses less digits than its factorization.

266944156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399788 (or 399786 counting only the distinct ones).

The product of its digits is 311040, while the sum is 43.

The square root of 266944156 is about 16338.4257503592. The cubic root of 266944156 is about 643.8827731793.

The spelling of 266944156 in words is "two hundred sixty-six million, nine hundred forty-four thousand, one hundred fifty-six".