622034365661 has 4 divisors (see below), whose sum is σ = 622061190300. Its totient is φ = 622007541024.

The previous prime is 622034365649. The next prime is 622034365691. The reversal of 622034365661 is 166563430226.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 578541263161 + 43493102500 = 760619^2 + 208550^2 .

It is a cyclic number.

It is not a de Polignac number, because 622034365661 - 2³⁸ = 347156458717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622034365691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13377506 + ... + 13423923.

It is an arithmetic number, because the mean of its divisors is an integer number (155515297575).

Almost surely, 2^622034365661 is an apocalyptic number.

It is an amenable number.

622034365661 is a deficient number, since it is larger than the sum of its proper divisors (26824639).

622034365661 is a wasteful number, since it uses less digits than its factorization.

622034365661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26824638.

The product of its (nonzero) digits is 933120, while the sum is 44.

Adding to 622034365661 its reverse (166563430226), we get a palindrome (788597795887).

The spelling of 622034365661 in words is "six hundred twenty-two billion, thirty-four million, three hundred sixty-five thousand, six hundred sixty-one".