5265543166123 has 4 divisors (see below), whose sum is σ = 5265550311840. Its totient is φ = 5265536020408.

The previous prime is 5265543166111. The next prime is 5265543166133. The reversal of 5265543166123 is 3216613455625.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5265543166123 is a prime.

It is a super-2 number, since 2×5265543166123² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5265543166133) 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, 2321428 + ... + 3990001.

It is an arithmetic number, because the mean of its divisors is an integer number (1316387577960).

Almost surely, 2^{5265543166123} is an apocalyptic number.

5265543166123 is a deficient number, since it is larger than the sum of its proper divisors (7145717).

5265543166123 is an equidigital number, since it uses as much as digits as its factorization.

5265543166123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7145716.

The product of its digits is 3888000, while the sum is 49.

The spelling of 5265543166123 in words is "five trillion, two hundred sixty-five billion, five hundred forty-three million, one hundred sixty-six thousand, one hundred twenty-three".