20159452800 has 192 divisors, whose sum is σ = 73778313600. Its totient is φ = 5375831040.

The previous prime is 20159452787. The next prime is 20159452837. The reversal of 20159452800 is 825495102.

It is a tau number, because it is divible by the number of its divisors (192).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30264 + ... + 203063.

It is an arithmetic number, because the mean of its divisors is an integer number (384262050).

Almost surely, 2^20159452800 is an apocalyptic number.

20159452800 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 20159452800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36889156800).

20159452800 is an abundant number, since it is smaller than the sum of its proper divisors (53618860800).

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

20159452800 is a wasteful number, since it uses less digits than its factorization.

20159452800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233360 (or 233337 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 20159452800 in words is "twenty billion, one hundred fifty-nine million, four hundred fifty-two thousand, eight hundred".