5512540666 has 8 divisors (see below), whose sum is σ = 8755211700. Its totient is φ = 2594136768.

The previous prime is 5512540619. The next prime is 5512540667. The reversal of 5512540666 is 6660452155.

It can be written as a sum of positive squares in 2 ways, for example, as 5503414225 + 9126441 = 74185^2 + 3021^2 .

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

It is not an unprimeable number, because it can be changed into a prime (5512540667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81066741 + ... + 81066808.

Almost surely, 2^5512540666 is an apocalyptic number.

5512540666 is a deficient number, since it is larger than the sum of its proper divisors (3242671034).

5512540666 is a wasteful number, since it uses less digits than its factorization.

5512540666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162133568.

The product of its (nonzero) digits is 216000, while the sum is 40.

The square root of 5512540666 is about 74246.4858831716. The cubic root of 5512540666 is about 1766.5147528961.

The spelling of 5512540666 in words is "five billion, five hundred twelve million, five hundred forty thousand, six hundred sixty-six".