5111651515 has 16 divisors (see below), whose sum is σ = 6269786208. Its totient is φ = 3999280896.

The previous prime is 5111651497. The next prime is 5111651527. The reversal of 5111651515 is 5151561115.

It is a cyclic number.

It is not a de Polignac number, because 5111651515 - 2⁵ = 5111651483 is a prime.

It is a super-2 number, since 2×5111651515² = 52257962421603590450, 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 15 ways as a sum of consecutive naturals, for example, 52132 + ... + 113758.

It is an arithmetic number, because the mean of its divisors is an integer number (391861638).

Almost surely, 2^5111651515 is an apocalyptic number.

5111651515 is a deficient number, since it is larger than the sum of its proper divisors (1158134693).

5111651515 is a wasteful number, since it uses less digits than its factorization.

5111651515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61998.

The product of its digits is 3750, while the sum is 31.

The square root of 5111651515 is about 71495.8146677132. The cubic root of 5111651515 is about 1722.6104577300.

The spelling of 5111651515 in words is "five billion, one hundred eleven million, six hundred fifty-one thousand, five hundred fifteen".