266101320 has 64 divisors (see below), whose sum is σ = 807952320. Its totient is φ = 70102784.

The previous prime is 266101301. The next prime is 266101331. The reversal of 266101320 is 23101662.

It is a happy number.

266101320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3399 + ... + 23318.

It is an arithmetic number, because the mean of its divisors is an integer number (12624255).

Almost surely, 2^266101320 is an apocalyptic number.

266101320 is a gapful number since it is divisible by the number (20) 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 266101320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403976160).

266101320 is an abundant number, since it is smaller than the sum of its proper divisors (541851000).

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

266101320 is a wasteful number, since it uses less digits than its factorization.

266101320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26814 (or 26810 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 266101320 is about 16312.6122984640. The cubic root of 266101320 is about 643.2044044091.

Adding to 266101320 its reverse (23101662), we get a palindrome (289202982).

The spelling of 266101320 in words is "two hundred sixty-six million, one hundred one thousand, three hundred twenty".