266165460 has 96 divisors (see below), whose sum is σ = 903369600. Its totient is φ = 64523520.

The previous prime is 266165437. The next prime is 266165489. The reversal of 266165460 is 64561662.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16465 + ... + 28344.

It is an arithmetic number, because the mean of its divisors is an integer number (9410100).

Almost surely, 2^266165460 is an apocalyptic number.

266165460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266165460 is an abundant number, since it is smaller than the sum of its proper divisors (637204140).

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

266165460 is a wasteful number, since it uses less digits than its factorization.

266165460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44838 (or 44830 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 266165460 is about 16314.5781434887. The cubic root of 266165460 is about 643.2560787316.

It can be divided in two parts, 2661 and 65460, that added together give a square (68121 = 261²).

The spelling of 266165460 in words is "two hundred sixty-six million, one hundred sixty-five thousand, four hundred sixty".