622056666 has 96 divisors (see below), whose sum is σ = 1647641088. Its totient is φ = 154529760.

The previous prime is 622056661. The next prime is 622056667. The reversal of 622056666 is 666650226.

622056666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (622056661) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70201 + ... + 78563.

It is an arithmetic number, because the mean of its divisors is an integer number (17162928).

Almost surely, 2^622056666 is an apocalyptic number.

622056666 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 622056666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (823820544).

622056666 is an abundant number, since it is smaller than the sum of its proper divisors (1025584422).

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

622056666 is a wasteful number, since it uses less digits than its factorization.

622056666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8416 (or 8409 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 622056666 is about 24941.0638506059. The cubic root of 622056666 is about 853.6437195197.

The spelling of 622056666 in words is "six hundred twenty-two million, fifty-six thousand, six hundred sixty-six".