18066246196 has 12 divisors (see below), whose sum is σ = 31667176548. Its totient is φ = 9018481472.

The previous prime is 18066246181. The next prime is 18066246251. The reversal of 18066246196 is 69164266081.

It can be written as a sum of positive squares in 2 ways, for example, as 5470673296 + 12595572900 = 73964^2 + 112230^2 .

It is a super-2 number, since 2×18066246196² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3657631 + ... + 3662566.

It is an arithmetic number, because the mean of its divisors is an integer number (2638931379).

Almost surely, 2^18066246196 is an apocalyptic number.

It is an amenable number.

18066246196 is a deficient number, since it is larger than the sum of its proper divisors (13600930352).

18066246196 is a wasteful number, since it uses less digits than its factorization.

18066246196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7320818 (or 7320816 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 18066246196 in words is "eighteen billion, sixty-six million, two hundred forty-six thousand, one hundred ninety-six".