6618223398 has 16 divisors (see below), whose sum is σ = 13238290800. Its totient is φ = 2205767136.

The previous prime is 6618223357. The next prime is 6618223399. The reversal of 6618223398 is 8933228166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6618223399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27765 + ... + 118352.

It is an arithmetic number, because the mean of its divisors is an integer number (827393175).

Almost surely, 2^6618223398 is an apocalyptic number.

6618223398 is an abundant number, since it is smaller than the sum of its proper divisors (6620067402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6618223398 is a wasteful number, since it uses less digits than its factorization.

6618223398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153671.

The product of its digits is 746496, while the sum is 48.

The square root of 6618223398 is about 81352.4639946449. The cubic root of 6618223398 is about 1877.5022849695.

The spelling of 6618223398 in words is "six billion, six hundred eighteen million, two hundred twenty-three thousand, three hundred ninety-eight".