5111661115 has 32 divisors (see below), whose sum is σ = 6833543616. Its totient is φ = 3639490560.

The previous prime is 5111661041. The next prime is 5111661119.

5111661115 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5111661115 - 2¹⁹ = 5111136827 is a prime.

It is a super-2 number, since 2×5111661115² = 52258158709206086450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5111661119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 545409 + ... + 554701.

It is an arithmetic number, because the mean of its divisors is an integer number (213548238).

Almost surely, 2^5111661115 is an apocalyptic number.

5111661115 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5111661115 is a deficient number, since it is larger than the sum of its proper divisors (1721882501).

5111661115 is a wasteful number, since it uses less digits than its factorization.

5111661115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9519.

The product of its digits is 900, while the sum is 28.

The square root of 5111661115 is about 71495.8818044788. The cubic root of 5111661115 is about 1722.6115361192.

The spelling of 5111661115 in words is "five billion, one hundred eleven million, six hundred sixty-one thousand, one hundred fifteen".