6126530666 has 4 divisors (see below), whose sum is σ = 9189796002. Its totient is φ = 3063265332.

The previous prime is 6126530629. The next prime is 6126530671. The reversal of 6126530666 is 6660356216.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5869858225 + 256672441 = 76615^2 + 16021^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1531632665 + ... + 1531632668.

Almost surely, 2^6126530666 is an apocalyptic number.

6126530666 is a deficient number, since it is larger than the sum of its proper divisors (3063265336).

6126530666 is a wasteful number, since it uses less digits than its factorization.

6126530666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3063265335.

The product of its (nonzero) digits is 233280, while the sum is 41.

The square root of 6126530666 is about 78272.1576679728. The cubic root of 6126530666 is about 1829.8052552377.

The spelling of 6126530666 in words is "six billion, one hundred twenty-six million, five hundred thirty thousand, six hundred sixty-six".