266060646 has 16 divisors (see below), whose sum is σ = 591246000. Its totient is φ = 88686864.

The previous prime is 266060623. The next prime is 266060657. The reversal of 266060646 is 646060662.

266060646 is a `hidden beast` number, since 2 + 6 + 6 + 0 + 6 + 0 + 646 = 666.

266060646 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 266060646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2463471 + ... + 2463578.

It is an arithmetic number, because the mean of its divisors is an integer number (36952875).

Almost surely, 2^266060646 is an apocalyptic number.

266060646 is an abundant number, since it is smaller than the sum of its proper divisors (325185354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266060646 is a wasteful number, since it uses less digits than its factorization.

266060646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4927060 (or 4927054 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 266060646 is about 16311.3655467591. The cubic root of 266060646 is about 643.1716311419.

The spelling of 266060646 in words is "two hundred sixty-six million, sixty thousand, six hundred forty-six".