5156561122203 has 16 divisors (see below), whose sum is σ = 7174402202880. Its totient is φ = 3288216073824.

The previous prime is 5156561122201. The next prime is 5156561122241. The reversal of 5156561122203 is 3022211656515.

It is not a de Polignac number, because 5156561122203 - 2¹ = 5156561122201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5156561122201) 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, 12718525 + ... + 13117697.

It is an arithmetic number, because the mean of its divisors is an integer number (448400137680).

Almost surely, 2^{5156561122203} is an apocalyptic number.

5156561122203 is a deficient number, since it is larger than the sum of its proper divisors (2017841080677).

5156561122203 is a wasteful number, since it uses less digits than its factorization.

5156561122203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586418.

The product of its (nonzero) digits is 108000, while the sum is 39.

Adding to 5156561122203 its reverse (3022211656515), we get a palindrome (8178772778718).

The spelling of 5156561122203 in words is "five trillion, one hundred fifty-six billion, five hundred sixty-one million, one hundred twenty-two thousand, two hundred three".