266350680 has 80 divisors (see below), whose sum is σ = 895245120. Its totient is φ = 71025984.

The previous prime is 266350631. The next prime is 266350681. The reversal of 266350680 is 86053662.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266350681) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 37864 + ... + 44343.

It is an arithmetic number, because the mean of its divisors is an integer number (11190564).

Almost surely, 2^266350680 is an apocalyptic number.

266350680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266350680 is an abundant number, since it is smaller than the sum of its proper divisors (628894440).

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

266350680 is a wasteful number, since it uses less digits than its factorization.

266350680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82230 (or 82217 counting only the distinct ones).

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

The square root of 266350680 is about 16320.2536744991. The cubic root of 266350680 is about 643.4052544421.

The spelling of 266350680 in words is "two hundred sixty-six million, three hundred fifty thousand, six hundred eighty".