5111516665 has 8 divisors (see below), whose sum is σ = 6400507968. Its totient is φ = 3911421360.

The previous prime is 5111516659. The next prime is 5111516671. The reversal of 5111516665 is 5666151115.

It is an interprime number because it is at equal distance from previous prime (5111516659) and next prime (5111516671).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-5111516665 is a prime.

It is a super-2 number, since 2×5111516665² = 52255205233145444450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22223871 + ... + 22224100.

It is an arithmetic number, because the mean of its divisors is an integer number (800063496).

Almost surely, 2^5111516665 is an apocalyptic number.

It is an amenable number.

5111516665 is a deficient number, since it is larger than the sum of its proper divisors (1288991303).

5111516665 is a wasteful number, since it uses less digits than its factorization.

5111516665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44447999.

The product of its digits is 27000, while the sum is 37.

The square root of 5111516665 is about 71494.8715992972. The cubic root of 5111516665 is about 1722.5953095884.

The spelling of 5111516665 in words is "five billion, one hundred eleven million, five hundred sixteen thousand, six hundred sixty-five".