6546550642 has 4 divisors (see below), whose sum is σ = 9819825966. Its totient is φ = 3273275320.

The previous prime is 6546550613. The next prime is 6546550657. The reversal of 6546550642 is 2460556456.

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., 3604681521 + 2941869121 = 60039^2 + 54239^2 .

It is a super-2 number, since 2×6546550642² = 85714650616541224328, which contains 22 as substring.

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, 1636637659 + ... + 1636637662.

Almost surely, 2^6546550642 is an apocalyptic number.

6546550642 is a deficient number, since it is larger than the sum of its proper divisors (3273275324).

6546550642 is a wasteful number, since it uses less digits than its factorization.

6546550642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3273275323.

The product of its (nonzero) digits is 864000, while the sum is 43.

The square root of 6546550642 is about 80910.7572699700. The cubic root of 6546550642 is about 1870.7001336143.

The spelling of 6546550642 in words is "six billion, five hundred forty-six million, five hundred fifty thousand, six hundred forty-two".