5165416378 has 4 divisors (see below), whose sum is σ = 7748124570. Its totient is φ = 2582708188.

The previous prime is 5165416349. The next prime is 5165416381. The reversal of 5165416378 is 8736145615.

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: 8736145615 = 5 ⋅1747229123.

It can be written as a sum of positive squares in only one way, i.e., 4941105849 + 224310529 = 70293^2 + 14977^2 .

It is a super-2 number, since 2×5165416378² = 53363052716221277768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1291354093 + ... + 1291354096.

Almost surely, 2^5165416378 is an apocalyptic number.

5165416378 is a deficient number, since it is larger than the sum of its proper divisors (2582708192).

5165416378 is a wasteful number, since it uses less digits than its factorization.

5165416378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2582708191.

The product of its digits is 604800, while the sum is 46.

The square root of 5165416378 is about 71870.8312043210. The cubic root of 5165416378 is about 1728.6289356281.

The spelling of 5165416378 in words is "five billion, one hundred sixty-five million, four hundred sixteen thousand, three hundred seventy-eight".