266725116 has 192 divisors, whose sum is σ = 860160000. Its totient is φ = 69750720.

The previous prime is 266725099. The next prime is 266725117. The reversal of 266725116 is 611527662.

It is a happy number.

It is a super-2 number, since 2×266725116² = 142284575010426912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266725117) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 444985 + ... + 445583.

It is an arithmetic number, because the mean of its divisors is an integer number (4480000).

Almost surely, 2^266725116 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 266725116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (430080000).

266725116 is an abundant number, since it is smaller than the sum of its proper divisors (593434884).

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

266725116 is a wasteful number, since it uses less digits than its factorization.

266725116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 661 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 266725116 is about 16331.7211585307. The cubic root of 266725116 is about 643.7066131440.

The spelling of 266725116 in words is "two hundred sixty-six million, seven hundred twenty-five thousand, one hundred sixteen".