6551222072 has 32 divisors (see below), whose sum is σ = 12681688320. Its totient is φ = 3170367360.

The previous prime is 6551222071. The next prime is 6551222077. The reversal of 6551222072 is 2702221556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6551222071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1403 + ... + 114474.

It is an arithmetic number, because the mean of its divisors is an integer number (396302760).

Almost surely, 2^6551222072 is an apocalyptic number.

It is an amenable number.

6551222072 is a deficient number, since it is larger than the sum of its proper divisors (6130466248).

6551222072 is a wasteful number, since it uses less digits than its factorization.

6551222072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116111 (or 116107 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 6551222072 is about 80939.6199150947. The cubic root of 6551222072 is about 1871.1449870661.

The spelling of 6551222072 in words is "six billion, five hundred fifty-one million, two hundred twenty-two thousand, seventy-two".