622665566226 has 64 divisors (see below), whose sum is σ = 1510946611200. Its totient is φ = 188504744400.

The previous prime is 622665566197. The next prime is 622665566323.

622665566226 is a `hidden beast` number, since 6 + 2 + 2 + 6 + 6 + 5 + 5 + 6 + 622 + 6 = 666.

622665566226 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112711 + ... + 1121621.

It is an arithmetic number, because the mean of its divisors is an integer number (23608540800).

Almost surely, 2^622665566226 is an apocalyptic number.

622665566226 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 622665566226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (755473305600).

622665566226 is an abundant number, since it is smaller than the sum of its proper divisors (888281044974).

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

622665566226 is a wasteful number, since it uses less digits than its factorization.

622665566226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009972 (or 1009966 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 54.

The spelling of 622665566226 in words is "six hundred twenty-two billion, six hundred sixty-five million, five hundred sixty-six thousand, two hundred twenty-six".