266105172 has 12 divisors (see below), whose sum is σ = 620912096. Its totient is φ = 88701720.

The previous prime is 266105141. The next prime is 266105197. The reversal of 266105172 is 271501662.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11087704 + ... + 11087727.

Almost surely, 2^266105172 is an apocalyptic number.

It is an amenable number.

266105172 is an abundant number, since it is smaller than the sum of its proper divisors (354806924).

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

266105172 is a wasteful number, since it uses less digits than its factorization.

266105172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22175438 (or 22175436 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 266105172 is about 16312.7303661895. The cubic root of 266105172 is about 643.2075080031.

The spelling of 266105172 in words is "two hundred sixty-six million, one hundred five thousand, one hundred seventy-two".