20163020061620 has 24 divisors (see below), whose sum is σ = 42429287410944. Its totient is φ = 8048647018656.

The previous prime is 20163020061607. The next prime is 20163020061623. The reversal of 20163020061620 is 2616002036102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20163020061623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1035052892 + ... + 1035072371.

It is an arithmetic number, because the mean of its divisors is an integer number (1767886975456).

Almost surely, 2^{20163020061620} is an apocalyptic number.

20163020061620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20163020061620 is an abundant number, since it is smaller than the sum of its proper divisors (22266267349324).

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

20163020061620 is a wasteful number, since it uses less digits than its factorization.

20163020061620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070125759 (or 2070125757 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 20163020061620 its reverse (2616002036102), we get a palindrome (22779022097722).

The spelling of 20163020061620 in words is "twenty trillion, one hundred sixty-three billion, twenty million, sixty-one thousand, six hundred twenty".