623920647168 has 396 divisors, whose sum is σ = 2256917229840. Its totient is φ = 164548952064.

The previous prime is 623920647167. The next prime is 623920647187. The reversal of 623920647168 is 861746029326.

623920647168 is a `hidden beast` number, since 6 + 23 + 92 + 0 + 6 + 471 + 68 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623920647167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5817453 + ... + 5923731.

Almost surely, 2^623920647168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 623920647168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1128458614920).

623920647168 is an abundant number, since it is smaller than the sum of its proper divisors (1632996582672).

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

623920647168 is a wasteful number, since it uses less digits than its factorization.

623920647168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106332 (or 106304 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 623920647168 in words is "six hundred twenty-three billion, nine hundred twenty million, six hundred forty-seven thousand, one hundred sixty-eight".