266151380 has 24 divisors (see below), whose sum is σ = 609729120. Its totient is φ = 96782240.

The previous prime is 266151349. The next prime is 266151401. The reversal of 266151380 is 83151662.

It is a happy number.

266151380 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 604670 + ... + 605109.

It is an arithmetic number, because the mean of its divisors is an integer number (25405380).

Almost surely, 2^266151380 is an apocalyptic number.

266151380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266151380 is an abundant number, since it is smaller than the sum of its proper divisors (343577740).

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

266151380 is a wasteful number, since it uses less digits than its factorization.

266151380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209799 (or 1209797 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 266151380 is about 16314.1466218739. The cubic root of 266151380 is about 643.2447359058.

The spelling of 266151380 in words is "two hundred sixty-six million, one hundred fifty-one thousand, three hundred eighty".