266214081 has 32 divisors (see below), whose sum is σ = 421134336. Its totient is φ = 146376000.

The previous prime is 266214043. The next prime is 266214089. The reversal of 266214081 is 180412662.

It is not a de Polignac number, because 266214081 - 2⁶ = 266214017 is a prime.

It is a super-2 number, since 2×266214081² = 141739873845349122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (266214089) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123271 + ... + 125411.

It is an arithmetic number, because the mean of its divisors is an integer number (13160448).

Almost surely, 2^266214081 is an apocalyptic number.

266214081 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

266214081 is a deficient number, since it is larger than the sum of its proper divisors (154920255).

266214081 is a wasteful number, since it uses less digits than its factorization.

266214081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 266214081 is about 16316.0681844616. The cubic root of 266214081 is about 643.2952446569.

The spelling of 266214081 in words is "two hundred sixty-six million, two hundred fourteen thousand, eighty-one".