5156506555023 has 4 divisors (see below), whose sum is σ = 6875342073368. Its totient is φ = 3437671036680.

The previous prime is 5156506554931. The next prime is 5156506555043. The reversal of 5156506555023 is 3205556056515.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 5156506555023 - 2⁸ = 5156506554767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5156506555043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 859417759168 + ... + 859417759173.

It is an arithmetic number, because the mean of its divisors is an integer number (1718835518342).

Almost surely, 2^{5156506555023} is an apocalyptic number.

5156506555023 is a deficient number, since it is larger than the sum of its proper divisors (1718835518345).

5156506555023 is a wasteful number, since it uses less digits than its factorization.

5156506555023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1718835518344.

The product of its (nonzero) digits is 3375000, while the sum is 48.

The spelling of 5156506555023 in words is "five trillion, one hundred fifty-six billion, five hundred six million, five hundred fifty-five thousand, twenty-three".