266055394 has 16 divisors (see below), whose sum is σ = 436609440. Its totient is φ = 120588160.

The previous prime is 266055379. The next prime is 266055401. The reversal of 266055394 is 493550662.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9364 + ... + 24895.

It is an arithmetic number, because the mean of its divisors is an integer number (27288090).

Almost surely, 2^266055394 is an apocalyptic number.

266055394 is a deficient number, since it is larger than the sum of its proper divisors (170554046).

266055394 is a wasteful number, since it uses less digits than its factorization.

266055394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34625.

The product of its (nonzero) digits is 194400, while the sum is 40.

The square root of 266055394 is about 16311.2045539255. The cubic root of 266055394 is about 643.1673990746.

The spelling of 266055394 in words is "two hundred sixty-six million, fifty-five thousand, three hundred ninety-four".