12456163746 has 128 divisors (see below), whose sum is σ = 30603847680. Its totient is φ = 3731918400.

The previous prime is 12456163739. The next prime is 12456163777. The reversal of 12456163746 is 64736165421.

12456163746 is a `hidden beast` number, since 1 + 2 + 4 + 5 + 6 + 1 + 637 + 4 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4135381 + ... + 4138391.

It is an arithmetic number, because the mean of its divisors is an integer number (239092560).

Almost surely, 2^12456163746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12456163746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15301923840).

12456163746 is an abundant number, since it is smaller than the sum of its proper divisors (18147683934).

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

12456163746 is a wasteful number, since it uses less digits than its factorization.

12456163746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3189 (or 3183 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The spelling of 12456163746 in words is "twelve billion, four hundred fifty-six million, one hundred sixty-three thousand, seven hundred forty-six".