6549720226 has 16 divisors (see below), whose sum is σ = 11263519296. Its totient is φ = 2798166096.

The previous prime is 6549720197. The next prime is 6549720257. The reversal of 6549720226 is 6220279456.

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, 733476 + ... + 742351.

It is an arithmetic number, because the mean of its divisors is an integer number (703969956).

Almost surely, 2^6549720226 is an apocalyptic number.

6549720226 is a deficient number, since it is larger than the sum of its proper divisors (4713799070).

6549720226 is a wasteful number, since it uses less digits than its factorization.

6549720226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476153.

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 6549720226 is about 80930.3418131914. The cubic root of 6549720226 is about 1871.0019915379.

The spelling of 6549720226 in words is "six billion, five hundred forty-nine million, seven hundred twenty thousand, two hundred twenty-six".