12161057607 has 16 divisors (see below), whose sum is σ = 18095758080. Its totient is φ = 8071652376.

The previous prime is 12161057603. The next prime is 12161057609. The reversal of 12161057607 is 70675016121.

12161057607 is a `hidden beast` number, since 1 + 21 + 61 + 0 + 576 + 0 + 7 = 666.

12161057607 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12161057607 - 2² = 12161057603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12161057603) 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 15 ways as a sum of consecutive naturals, for example, 985963 + ... + 998220.

It is an arithmetic number, because the mean of its divisors is an integer number (1130984880).

Almost surely, 2^12161057607 is an apocalyptic number.

12161057607 is a deficient number, since it is larger than the sum of its proper divisors (5934700473).

12161057607 is a wasteful number, since it uses less digits than its factorization.

12161057607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984419 (or 1984413 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The spelling of 12161057607 in words is "twelve billion, one hundred sixty-one million, fifty-seven thousand, six hundred seven".