5166536243 has 4 divisors (see below), whose sum is σ = 5636221368. Its totient is φ = 4696851120.

The previous prime is 5166536231. The next prime is 5166536261. The reversal of 5166536243 is 3426356615.

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

It is a cyclic number.

It is not a de Polignac number, because 5166536243 - 2¹⁶ = 5166470707 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5166536243.

It is not an unprimeable number, because it can be changed into a prime (5166536273) 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, 234842546 + ... + 234842567.

It is an arithmetic number, because the mean of its divisors is an integer number (1409055342).

Almost surely, 2^5166536243 is an apocalyptic number.

5166536243 is a deficient number, since it is larger than the sum of its proper divisors (469685125).

5166536243 is a wasteful number, since it uses less digits than its factorization.

5166536243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469685124.

The product of its digits is 388800, while the sum is 41.

The square root of 5166536243 is about 71878.6215991932. The cubic root of 5166536243 is about 1728.7538491570.

The spelling of 5166536243 in words is "five billion, one hundred sixty-six million, five hundred thirty-six thousand, two hundred forty-three".