266370980 has 12 divisors (see below), whose sum is σ = 559379100. Its totient is φ = 106548384.

The previous prime is 266370967. The next prime is 266370983. The reversal of 266370980 is 89073662.

It can be written as a sum of positive squares in 2 ways, for example, as 107661376 + 158709604 = 10376^2 + 12598^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (266370983) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6659255 + ... + 6659294.

It is an arithmetic number, because the mean of its divisors is an integer number (46614925).

Almost surely, 2^266370980 is an apocalyptic number.

266370980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266370980 is an abundant number, since it is smaller than the sum of its proper divisors (293008120).

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

266370980 is a wasteful number, since it uses less digits than its factorization.

266370980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13318558 (or 13318556 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 266370980 is about 16320.8755892568. The cubic root of 266370980 is about 643.4215998041.

The spelling of 266370980 in words is "two hundred sixty-six million, three hundred seventy thousand, nine hundred eighty".