20168445060 has 72 divisors (see below), whose sum is σ = 61238562840. Its totient is φ = 5372894208.

The previous prime is 20168445029. The next prime is 20168445061. The reversal of 20168445060 is 6054486102.

20168445060 is a `hidden beast` number, since 201 + 6 + 8 + 445 + 0 + 6 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 631114884 + 19537330176 = 25122^2 + 139776^2 .

It is a super-2 number, since 2×20168445060² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (20168445061) 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 23 ways as a sum of consecutive naturals, for example, 127036 + ... + 237644.

It is an arithmetic number, because the mean of its divisors is an integer number (850535595).

Almost surely, 2^20168445060 is an apocalyptic number.

20168445060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20168445060 is an abundant number, since it is smaller than the sum of its proper divisors (41070117780).

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

20168445060 is a wasteful number, since it uses less digits than its factorization.

20168445060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111637 (or 111632 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 20168445060 in words is "twenty billion, one hundred sixty-eight million, four hundred forty-five thousand, sixty".