12033453646 has 16 divisors (see below), whose sum is σ = 18255927168. Its totient is φ = 5948523000.

The previous prime is 12033453617. The next prime is 12033453671. The reversal of 12033453646 is 64635433021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30700 + ... + 158143.

It is an arithmetic number, because the mean of its divisors is an integer number (1140995448).

Almost surely, 2^12033453646 is an apocalyptic number.

12033453646 is a deficient number, since it is larger than the sum of its proper divisors (6222473522).

12033453646 is a wasteful number, since it uses less digits than its factorization.

12033453646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189207.

The product of its (nonzero) digits is 155520, while the sum is 37.

Adding to 12033453646 its reverse (64635433021), we get a palindrome (76668886667).

The spelling of 12033453646 in words is "twelve billion, thirty-three million, four hundred fifty-three thousand, six hundred forty-six".