12420770163 has 16 divisors (see below), whose sum is σ = 17822671776. Its totient is φ = 7665661440.

The previous prime is 12420770147. The next prime is 12420770171. The reversal of 12420770163 is 36107702421.

It is not a de Polignac number, because 12420770163 - 2⁴ = 12420770147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12420770563) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1993156 + ... + 1999377.

It is an arithmetic number, because the mean of its divisors is an integer number (1113916986).

Almost surely, 2^12420770163 is an apocalyptic number.

12420770163 is a deficient number, since it is larger than the sum of its proper divisors (5401901613).

12420770163 is a wasteful number, since it uses less digits than its factorization.

12420770163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3992614.

The product of its (nonzero) digits is 14112, while the sum is 33.

The spelling of 12420770163 in words is "twelve billion, four hundred twenty million, seven hundred seventy thousand, one hundred sixty-three".