266012172 has 36 divisors (see below), whose sum is σ = 674133096. Its totient is φ = 88444800.

The previous prime is 266012167. The next prime is 266012183. The reversal of 266012172 is 271210662.

266012172 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5223 + ... + 23649.

Almost surely, 2^266012172 is an apocalyptic number.

It is an amenable number.

266012172 is an abundant number, since it is smaller than the sum of its proper divisors (408120924).

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

266012172 is a wasteful number, since it uses less digits than its factorization.

266012172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18838 (or 18833 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 266012172 is about 16309.8795826333. The cubic root of 266012172 is about 643.1325686252.

The spelling of 266012172 in words is "two hundred sixty-six million, twelve thousand, one hundred seventy-two".