11766261 has 16 divisors (see below), whose sum is σ = 17889984. Its totient is φ = 6814464.

The previous prime is 11766247. The next prime is 11766269. The reversal of 11766261 is 16266711.

It is not a de Polignac number, because 11766261 - 2¹¹ = 11764213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11766269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8211 + ... + 9536.

It is an arithmetic number, because the mean of its divisors is an integer number (1118124).

Almost surely, 2^11766261 is an apocalyptic number.

It is an amenable number.

11766261 is a deficient number, since it is larger than the sum of its proper divisors (6123723).

11766261 is a wasteful number, since it uses less digits than its factorization.

11766261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17780.

The product of its digits is 3024, while the sum is 30.

The square root of 11766261 is about 3430.1983907640. The cubic root of 11766261 is about 227.4466227468.

The spelling of 11766261 in words is "eleven million, seven hundred sixty-six thousand, two hundred sixty-one".