623355613044220 has 96 divisors (see below), whose sum is σ = 1497802634375040. Its totient is φ = 213472058204160.

The previous prime is 623355613044187. The next prime is 623355613044233. The reversal of 623355613044220 is 22440316553326.

It is a congruent 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, 6862006000 + ... + 6862096840.

It is an arithmetic number, because the mean of its divisors is an integer number (15602110774740).

Almost surely, 2^{623355613044220} is an apocalyptic number.

It is an amenable number.

623355613044220 is an abundant number, since it is smaller than the sum of its proper divisors (874447021330820).

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

623355613044220 is a wasteful number, since it uses less digits than its factorization.

623355613044220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147623 (or 147621 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 46.

Adding to 623355613044220 its reverse (22440316553326), we get a palindrome (645795929597546).

The spelling of 623355613044220 in words is "six hundred twenty-three trillion, three hundred fifty-five billion, six hundred thirteen million, forty-four thousand, two hundred twenty".