5166311042 has 4 divisors (see below), whose sum is σ = 7749466566. Its totient is φ = 2583155520.

The previous prime is 5166311027. The next prime is 5166311047. The reversal of 5166311042 is 2401136615.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2401136615 = 5 ⋅480227323.

It can be written as a sum of positive squares in only one way, i.e., 2997453001 + 2168858041 = 54749^2 + 46571^2 .

It is a super-2 number, since 2×5166311042² = 53381539565382251528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5166310996 and 5166311014.

It is not an unprimeable number, because it can be changed into a prime (5166311047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1291577759 + ... + 1291577762.

Almost surely, 2^5166311042 is an apocalyptic number.

5166311042 is a deficient number, since it is larger than the sum of its proper divisors (2583155524).

5166311042 is a wasteful number, since it uses less digits than its factorization.

5166311042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2583155523.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 5166311042 is about 71877.0550454037. The cubic root of 5166311042 is about 1728.7287309260.

Adding to 5166311042 its reverse (2401136615), we get a palindrome (7567447657).

The spelling of 5166311042 in words is "five billion, one hundred sixty-six million, three hundred eleven thousand, forty-two".