12056107657 has 4 divisors (see below), whose sum is σ = 13152117456. Its totient is φ = 10960097860.

The previous prime is 12056107597. The next prime is 12056107673. The reversal of 12056107657 is 75670165021.

It is a happy number.

12056107657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12056107657 - 2⁷ = 12056107529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12056101657) by changing a digit.

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, 548004883 + ... + 548004904.

It is an arithmetic number, because the mean of its divisors is an integer number (3288029364).

Almost surely, 2^12056107657 is an apocalyptic number.

It is an amenable number.

12056107657 is a deficient number, since it is larger than the sum of its proper divisors (1096009799).

12056107657 is a wasteful number, since it uses less digits than its factorization.

12056107657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096009798.

The product of its (nonzero) digits is 88200, while the sum is 40.

The spelling of 12056107657 in words is "twelve billion, fifty-six million, one hundred seven thousand, six hundred fifty-seven".