126163161603 has 16 divisors (see below), whose sum is σ = 191467130400. Its totient is φ = 82057340160.

The previous prime is 126163161601. The next prime is 126163161613. The reversal of 126163161603 is 306161361621.

126163161603 is a `hidden beast` number, since 1 + 2 + 6 + 1 + 6 + 31 + 616 + 0 + 3 = 666.

It is not a de Polignac number, because 126163161603 - 2¹ = 126163161601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126163161601) 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, 56983158 + ... + 56985371.

It is an arithmetic number, because the mean of its divisors is an integer number (11966695650).

Almost surely, 2^126163161603 is an apocalyptic number.

126163161603 is a deficient number, since it is larger than the sum of its proper divisors (65303968797).

126163161603 is a wasteful number, since it uses less digits than its factorization.

126163161603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113968579 (or 113968573 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The spelling of 126163161603 in words is "one hundred twenty-six billion, one hundred sixty-three million, one hundred sixty-one thousand, six hundred three".