5165912620018 has 4 divisors (see below), whose sum is σ = 7748868930030. Its totient is φ = 2582956310008.

The previous prime is 5165912620007. The next prime is 5165912620039. The reversal of 5165912620018 is 8100262195615.

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

It can be written as a sum of positive squares in only one way, i.e., 5051287715049 + 114624904969 = 2247507^2 + 338563^2 .

It is a super-2 number, since 2×5165912620018² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5165912620018.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1291478155003 + ... + 1291478155006.

Almost surely, 2^{5165912620018} is an apocalyptic number.

5165912620018 is a deficient number, since it is larger than the sum of its proper divisors (2582956310012).

5165912620018 is a wasteful number, since it uses less digits than its factorization.

5165912620018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582956310011.

The product of its (nonzero) digits is 259200, while the sum is 46.

The spelling of 5165912620018 in words is "five trillion, one hundred sixty-five billion, nine hundred twelve million, six hundred twenty thousand, eighteen".