5111510666 has 16 divisors (see below), whose sum is σ = 8255882880. Its totient is φ = 2364646080.

The previous prime is 5111510653. The next prime is 5111510687. The reversal of 5111510666 is 6660151115.

It is a super-2 number, since 2×5111510666² = 52255082577263527112, which contains 22 as substring.

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, 1272050 + ... + 1276061.

It is an arithmetic number, because the mean of its divisors is an integer number (515992680).

Almost surely, 2^5111510666 is an apocalyptic number.

5111510666 is a deficient number, since it is larger than the sum of its proper divisors (3144372214).

5111510666 is a wasteful number, since it uses less digits than its factorization.

5111510666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548189.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 5111510666 is about 71494.8296452268. The cubic root of 5111510666 is about 1722.5946356949.

The spelling of 5111510666 in words is "five billion, one hundred eleven million, five hundred ten thousand, six hundred sixty-six".