12007001656 has 16 divisors (see below), whose sum is σ = 24244907400. Its totient is φ = 5541693024.

The previous prime is 12007001603. The next prime is 12007001701. The reversal of 12007001656 is 65610070021.

12007001656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57725866 + ... + 57726073.

Almost surely, 2^12007001656 is an apocalyptic number.

It is an amenable number.

12007001656 is an abundant number, since it is smaller than the sum of its proper divisors (12237905744).

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

12007001656 is a wasteful number, since it uses less digits than its factorization.

12007001656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115451958 (or 115451954 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

Adding to 12007001656 its reverse (65610070021), we get a palindrome (77617071677).

The spelling of 12007001656 in words is "twelve billion, seven million, one thousand, six hundred fifty-six".