622554245165 has 4 divisors (see below), whose sum is σ = 747065094204. Its totient is φ = 498043396128.

The previous prime is 622554245129. The next prime is 622554245267. The reversal of 622554245165 is 561542455226.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 561542455226 = 2 ⋅280771227613.

It can be written as a sum of positive squares in 2 ways, for example, as 168101640004 + 454452605161 = 410002^2 + 674131^2 .

It is a cyclic number.

It is not a de Polignac number, because 622554245165 - 2¹⁴ = 622554228781 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62255424512 + ... + 62255424521.

It is an arithmetic number, because the mean of its divisors is an integer number (186766273551).

Almost surely, 2^622554245165 is an apocalyptic number.

It is an amenable number.

622554245165 is a deficient number, since it is larger than the sum of its proper divisors (124510849039).

622554245165 is a wasteful number, since it uses less digits than its factorization.

622554245165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124510849038.

The product of its digits is 2880000, while the sum is 47.

The spelling of 622554245165 in words is "six hundred twenty-two billion, five hundred fifty-four million, two hundred forty-five thousand, one hundred sixty-five".