266699982 has 16 divisors (see below), whose sum is σ = 536799312. Its totient is φ = 88333440.

The previous prime is 266699947. The next prime is 266700013. The reversal of 266699982 is 289996662.

266699982 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×266699982² = 142257760797600648, which contains 22 as substring.

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, 140619 + ... + 142502.

It is an arithmetic number, because the mean of its divisors is an integer number (33549957).

Almost surely, 2^266699982 is an apocalyptic number.

266699982 is an abundant number, since it is smaller than the sum of its proper divisors (270099330).

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

266699982 is a wasteful number, since it uses less digits than its factorization.

266699982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283283.

The product of its digits is 5038848, while the sum is 57.

The square root of 266699982 is about 16330.9516562875. The cubic root of 266699982 is about 643.6863932881.

The spelling of 266699982 in words is "two hundred sixty-six million, six hundred ninety-nine thousand, nine hundred eighty-two".