266180136 has 64 divisors (see below), whose sum is σ = 696729600. Its totient is φ = 84638400.

The previous prime is 266180113. The next prime is 266180143. The reversal of 266180136 is 631081662.

It is a junction number, because it is equal to n+sod(n) for n = 266180097 and 266180106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50305 + ... + 55343.

It is an arithmetic number, because the mean of its divisors is an integer number (10886400).

Almost surely, 2^266180136 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 266180136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348364800).

266180136 is an abundant number, since it is smaller than the sum of its proper divisors (430549464).

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

266180136 is a wasteful number, since it uses less digits than its factorization.

266180136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5150 (or 5146 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 266180136 is about 16315.0279190690. The cubic root of 266180136 is about 643.2679012682.

The spelling of 266180136 in words is "two hundred sixty-six million, one hundred eighty thousand, one hundred thirty-six".