21630160111000 has 192 divisors, whose sum is σ = 58925112573600. Its totient is φ = 7410143328000.

The previous prime is 21630160110941. The next prime is 21630160111009. The reversal of 21630160111000 is 11106103612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21630160111009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61515690 + ... + 61866310.

Almost surely, 2^{21630160111000} is an apocalyptic number.

21630160111000 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 21630160111000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29462556286800).

21630160111000 is an abundant number, since it is smaller than the sum of its proper divisors (37294952462600).

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

21630160111000 is a wasteful number, since it uses less digits than its factorization.

21630160111000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351915 (or 351894 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 21630160111000 its reverse (11106103612), we get a palindrome (21641266214612).

The spelling of 21630160111000 in words is "twenty-one trillion, six hundred thirty billion, one hundred sixty million, one hundred eleven thousand".