11554794666 has 40 divisors (see below), whose sum is σ = 25897678884. Its totient is φ = 3850649280.

The previous prime is 11554794659. The next prime is 11554794673. The reversal of 11554794666 is 66649745511.

It is an interprime number because it is at equal distance from previous prime (11554794659) and next prime (11554794673).

It can be written as a sum of positive squares in 2 ways, for example, as 9590089041 + 1964705625 = 97929^2 + 44325^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1024876 + ... + 1036088.

Almost surely, 2^11554794666 is an apocalyptic number.

11554794666 is an abundant number, since it is smaller than the sum of its proper divisors (14342884218).

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

11554794666 is a wasteful number, since it uses less digits than its factorization.

11554794666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17588 (or 17579 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The spelling of 11554794666 in words is "eleven billion, five hundred fifty-four million, seven hundred ninety-four thousand, six hundred sixty-six".