266072916 has 48 divisors (see below), whose sum is σ = 658917504. Its totient is φ = 83275776.

The previous prime is 266072893. The next prime is 266072923. The reversal of 266072916 is 619270662.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 101316 + ... + 103908.

It is an arithmetic number, because the mean of its divisors is an integer number (13727448).

Almost surely, 2^266072916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266072916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329458752).

266072916 is an abundant number, since it is smaller than the sum of its proper divisors (392844588).

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

266072916 is a wasteful number, since it uses less digits than its factorization.

266072916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3120 (or 3118 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 266072916 is about 16311.7416605340. The cubic root of 266072916 is about 643.1815181040.

The spelling of 266072916 in words is "two hundred sixty-six million, seventy-two thousand, nine hundred sixteen".