21150163230600 has 192 divisors, whose sum is σ = 65870802748800. Its totient is φ = 5613795717120.

The previous prime is 21150163230587. The next prime is 21150163230649. The reversal of 21150163230600 is 603236105112.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 521137909 + ... + 521178491.

It is an arithmetic number, because the mean of its divisors is an integer number (343077097650).

Almost surely, 2^{21150163230600} is an apocalyptic number.

21150163230600 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 21150163230600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32935401374400).

21150163230600 is an abundant number, since it is smaller than the sum of its proper divisors (44720639518200).

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

21150163230600 is a wasteful number, since it uses less digits than its factorization.

21150163230600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44624 (or 44615 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

Adding to 21150163230600 its reverse (603236105112), we get a palindrome (21753399335712).

The spelling of 21150163230600 in words is "twenty-one trillion, one hundred fifty billion, one hundred sixty-three million, two hundred thirty thousand, six hundred".