622444531355566 has 16 divisors (see below), whose sum is σ = 936439296375024. Its totient is φ = 310298103126144.

The previous prime is 622444531355531. The next prime is 622444531355573. The reversal of 622444531355566 is 665553135444226.

622444531355566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×622444531355566² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

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, 549932916 + ... + 551063608.

It is an arithmetic number, because the mean of its divisors is an integer number (58527456023439).

Almost surely, 2^{622444531355566} is an apocalyptic number.

622444531355566 is a deficient number, since it is larger than the sum of its proper divisors (313994765019458).

622444531355566 is a wasteful number, since it uses less digits than its factorization.

622444531355566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947795.

The product of its digits is 311040000, while the sum is 61.

The spelling of 622444531355566 in words is "six hundred twenty-two trillion, four hundred forty-four billion, five hundred thirty-one million, three hundred fifty-five thousand, five hundred sixty-six".