20361600000 has 792 divisors, whose sum is σ = 84817133856. Its totient is φ = 4608000000.

The previous prime is 20361599939. The next prime is 20361600013. The reversal of 20361600000 is 616302.

It is a happy number.

20361600000 is a `hidden beast` number, since 2 + 0 + 3 + 61 + 600 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 201599950 + ... + 201600050.

Almost surely, 2^20361600000 is an apocalyptic number.

20361600000 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 20361600000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42408566928).

20361600000 is an abundant number, since it is smaller than the sum of its proper divisors (64455533856).

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

20361600000 is an equidigital number, since it uses as much as digits as its factorization.

20361600000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The spelling of 20361600000 in words is "twenty billion, three hundred sixty-one million, six hundred thousand".