1166540262 has 16 divisors (see below), whose sum is σ = 2333630640. Its totient is φ = 388755072.

The previous prime is 1166540239. The next prime is 1166540269. The reversal of 1166540262 is 2620456611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166540269) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7818 + ... + 48930.

It is an arithmetic number, because the mean of its divisors is an integer number (145851915).

Almost surely, 2^1166540262 is an apocalyptic number.

1166540262 is an abundant number, since it is smaller than the sum of its proper divisors (1167090378).

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

1166540262 is a wasteful number, since it uses less digits than its factorization.

1166540262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45847.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 1166540262 is about 34154.6521282241. The cubic root of 1166540262 is about 1052.6885783634.

Adding to 1166540262 its reverse (2620456611), we get a palindrome (3786996873).

The spelling of 1166540262 in words is "one billion, one hundred sixty-six million, five hundred forty thousand, two hundred sixty-two".