266620704 has 96 divisors (see below), whose sum is σ = 819455616. Its totient is φ = 74311680.

The previous prime is 266620703. The next prime is 266620723. The reversal of 266620704 is 407026662.

266620704 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (266620703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22714 + ... + 32390.

It is an arithmetic number, because the mean of its divisors is an integer number (8535996).

Almost surely, 2^266620704 is an apocalyptic number.

266620704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266620704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (409727808).

266620704 is an abundant number, since it is smaller than the sum of its proper divisors (552834912).

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

266620704 is a wasteful number, since it uses less digits than its factorization.

266620704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9738 (or 9730 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 266620704 is about 16328.5242444013. The cubic root of 266620704 is about 643.6226072233.

The spelling of 266620704 in words is "two hundred sixty-six million, six hundred twenty thousand, seven hundred four".