12158859503 has 16 divisors (see below), whose sum is σ = 13975847424. Its totient is φ = 10361947680.

The previous prime is 12158859497. The next prime is 12158859569. The reversal of 12158859503 is 30595885121.

It is not a de Polignac number, because 12158859503 - 2¹⁶ = 12158793967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12158859593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3648548 + ... + 3651878.

It is an arithmetic number, because the mean of its divisors is an integer number (873490464).

Almost surely, 2^12158859503 is an apocalyptic number.

12158859503 is a deficient number, since it is larger than the sum of its proper divisors (1816987921).

12158859503 is a wasteful number, since it uses less digits than its factorization.

12158859503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6182.

The product of its (nonzero) digits is 432000, while the sum is 47.

The spelling of 12158859503 in words is "twelve billion, one hundred fifty-eight million, eight hundred fifty-nine thousand, five hundred three".