568161961620 has 384 divisors, whose sum is σ = 1947337459200. Its totient is φ = 122108313600.

The previous prime is 568161961561. The next prime is 568161961621. The reversal of 568161961620 is 26169161865.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (568161961621) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 13319286 + ... + 13361874.

It is an arithmetic number, because the mean of its divisors is an integer number (5071191300).

Almost surely, 2^568161961620 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 568161961620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (973668729600).

568161961620 is an abundant number, since it is smaller than the sum of its proper divisors (1379175497580).

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

568161961620 is a wasteful number, since it uses less digits than its factorization.

568161961620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42699 (or 42697 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 51.

The spelling of 568161961620 in words is "five hundred sixty-eight billion, one hundred sixty-one million, nine hundred sixty-one thousand, six hundred twenty".