266611260 has 48 divisors (see below), whose sum is σ = 762402816. Its totient is φ = 69582912.

The previous prime is 266611237. The next prime is 266611271. The reversal of 266611260 is 62116662.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 44452 + ... + 50091.

It is an arithmetic number, because the mean of its divisors is an integer number (15883392).

Almost surely, 2^266611260 is an apocalyptic number.

266611260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266611260 is an abundant number, since it is smaller than the sum of its proper divisors (495791556).

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

266611260 is a wasteful number, since it uses less digits than its factorization.

266611260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94602 (or 94600 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 266611260 is about 16328.2350546530. The cubic root of 266611260 is about 643.6150078589.

The spelling of 266611260 in words is "two hundred sixty-six million, six hundred eleven thousand, two hundred sixty".