6551243012 has 24 divisors (see below), whose sum is σ = 12146236704. Its totient is φ = 3081117312.

The previous prime is 6551243009. The next prime is 6551243071. The reversal of 6551243012 is 2103421556.

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, 91223 + ... + 146369.

It is an arithmetic number, because the mean of its divisors is an integer number (506093196).

Almost surely, 2^6551243012 is an apocalyptic number.

It is an amenable number.

6551243012 is a deficient number, since it is larger than the sum of its proper divisors (5594993692).

6551243012 is a wasteful number, since it uses less digits than its factorization.

6551243012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56915 (or 56913 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 6551243012 is about 80939.7492706766. The cubic root of 6551243012 is about 1871.1469806756.

Adding to 6551243012 its reverse (2103421556), we get a palindrome (8654664568).

The spelling of 6551243012 in words is "six billion, five hundred fifty-one million, two hundred forty-three thousand, twelve".