11651027166 has 24 divisors (see below), whose sum is σ = 26058212544. Its totient is φ = 3758395680.

The previous prime is 11651027161. The next prime is 11651027191. The reversal of 11651027166 is 66172015611.

It is a happy number.

11651027166 is a `hidden beast` number, since 1 + 16 + 510 + 2 + 71 + 66 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11651027166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11651027161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10439431 + ... + 10440546.

It is an arithmetic number, because the mean of its divisors is an integer number (1085758856).

Almost surely, 2^11651027166 is an apocalyptic number.

11651027166 is an abundant number, since it is smaller than the sum of its proper divisors (14407185378).

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

11651027166 is a wasteful number, since it uses less digits than its factorization.

11651027166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20880016 (or 20880013 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The spelling of 11651027166 in words is "eleven billion, six hundred fifty-one million, twenty-seven thousand, one hundred sixty-six".