266106073 has 8 divisors (see below), whose sum is σ = 269100648. Its totient is φ = 263122944.

The previous prime is 266106047. The next prime is 266106079. The reversal of 266106073 is 370601662.

It can be written as a sum of positive squares in 4 ways, for example, as 29192409 + 236913664 = 5403^2 + 15392^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266106073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266106079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49065 + ... + 54217.

It is an arithmetic number, because the mean of its divisors is an integer number (33637581).

Almost surely, 2^266106073 is an apocalyptic number.

It is an amenable number.

266106073 is a deficient number, since it is larger than the sum of its proper divisors (2994575).

266106073 is a wasteful number, since it uses less digits than its factorization.

266106073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5723.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 266106073 is about 16312.7579826343. The cubic root of 266106073 is about 643.2082339433.

The spelling of 266106073 in words is "two hundred sixty-six million, one hundred six thousand, seventy-three".