20163251115660 has 192 divisors, whose sum is σ = 57155534077824. Its totient is φ = 5310627840000.

The previous prime is 20163251115647. The next prime is 20163251115703. The reversal of 20163251115660 is 6651115236102.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5832584652 + ... + 5832588108.

It is an arithmetic number, because the mean of its divisors is an integer number (297685073322).

Almost surely, 2^{20163251115660} is an apocalyptic number.

20163251115660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20163251115660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28577767038912).

20163251115660 is an abundant number, since it is smaller than the sum of its proper divisors (36992282962164).

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

20163251115660 is a wasteful number, since it uses less digits than its factorization.

20163251115660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5644 (or 5642 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 20163251115660 in words is "twenty trillion, one hundred sixty-three billion, two hundred fifty-one million, one hundred fifteen thousand, six hundred sixty".