620244144623 has 12 divisors (see below), whose sum is σ = 640950558120. Its totient is φ = 600186518640.

The previous prime is 620244144607. The next prime is 620244144671. The reversal of 620244144623 is 326441442026.

It is not a de Polignac number, because 620244144623 - 2⁴ = 620244144607 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 (620244144323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17644661 + ... + 17679777.

It is an arithmetic number, because the mean of its divisors is an integer number (53412546510).

Almost surely, 2^620244144623 is an apocalyptic number.

620244144623 is a deficient number, since it is larger than the sum of its proper divisors (20706413497).

620244144623 is a wasteful number, since it uses less digits than its factorization.

620244144623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53558 (or 53527 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 38.

Adding to 620244144623 its reverse (326441442026), we get a palindrome (946685586649).

The spelling of 620244144623 in words is "six hundred twenty billion, two hundred forty-four million, one hundred forty-four thousand, six hundred twenty-three".