2278336566 has 128 divisors (see below), whose sum is σ = 5414584320. Its totient is φ = 631411200.

The previous prime is 2278336547. The next prime is 2278336579. The reversal of 2278336566 is 6656338722.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8407011 + ... + 8407281.

It is an arithmetic number, because the mean of its divisors is an integer number (42301440).

Almost surely, 2^2278336566 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2278336566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2707292160).

2278336566 is an abundant number, since it is smaller than the sum of its proper divisors (3136247754).

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

2278336566 is a wasteful number, since it uses less digits than its factorization.

2278336566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490.

The product of its digits is 2177280, while the sum is 48.

The square root of 2278336566 is about 47731.9239712794. The cubic root of 2278336566 is about 1315.8487132962.

The spelling of 2278336566 in words is "two billion, two hundred seventy-eight million, three hundred thirty-six thousand, five hundred sixty-six".