5115105666 has 64 divisors (see below), whose sum is σ = 12827894400. Its totient is φ = 1496577600.

The previous prime is 5115105661. The next prime is 5115105689. The reversal of 5115105666 is 6665015115.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5115105666.

It is not an unprimeable number, because it can be changed into a prime (5115105661) 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, 131245 + ... + 165696.

It is an arithmetic number, because the mean of its divisors is an integer number (200435850).

Almost surely, 2^5115105666 is an apocalyptic number.

5115105666 is an abundant number, since it is smaller than the sum of its proper divisors (7712788734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5115105666 is a wasteful number, since it uses less digits than its factorization.

5115105666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296992 (or 296986 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 5115105666 is about 71519.9669043548. The cubic root of 5115105666 is about 1722.9983830327.

The spelling of 5115105666 in words is "five billion, one hundred fifteen million, one hundred five thousand, six hundred sixty-six".