11166148564 has 12 divisors (see below), whose sum is σ = 19598746804. Its totient is φ = 5566506624.

The previous prime is 11166148561. The next prime is 11166148639. The reversal of 11166148564 is 46584166111.

It can be written as a sum of positive squares in 2 ways, for example, as 6973586064 + 4192562500 = 83508^2 + 64750^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11166148564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11166148561) 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 3 ways as a sum of consecutive naturals, for example, 4140399 + ... + 4143094.

Almost surely, 2^11166148564 is an apocalyptic number.

It is an amenable number.

11166148564 is a deficient number, since it is larger than the sum of its proper divisors (8432598240).

11166148564 is a wasteful number, since it uses less digits than its factorization.

11166148564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8283834 (or 8283832 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The spelling of 11166148564 in words is "eleven billion, one hundred sixty-six million, one hundred forty-eight thousand, five hundred sixty-four".