266109140 has 24 divisors (see below), whose sum is σ = 609632352. Its totient is φ = 96766880.

The previous prime is 266109139. The next prime is 266109167. The reversal of 266109140 is 41901662.

266109140 is digitally balanced in base 2, 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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 604574 + ... + 605013.

It is an arithmetic number, because the mean of its divisors is an integer number (25401348).

Almost surely, 2^266109140 is an apocalyptic number.

266109140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266109140 is an abundant number, since it is smaller than the sum of its proper divisors (343523212).

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

266109140 is a wasteful number, since it uses less digits than its factorization.

266109140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209607 (or 1209605 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 266109140 is about 16312.8519885396. The cubic root of 266109140 is about 643.2107050282.

The spelling of 266109140 in words is "two hundred sixty-six million, one hundred nine thousand, one hundred forty".