21150413362160 has 160 divisors (see below), whose sum is σ = 54812562753600. Its totient is φ = 7542763683840.

The previous prime is 21150413362147. The next prime is 21150413362187. The reversal of 21150413362160 is 6126331405112.

It is a self number, because there is not a number n which added to its sum of digits gives 21150413362160.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 363823976 + ... + 363882104.

It is an arithmetic number, because the mean of its divisors is an integer number (342578517210).

Almost surely, 2^{21150413362160} is an apocalyptic number.

21150413362160 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 21150413362160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27406281376800).

21150413362160 is an abundant number, since it is smaller than the sum of its proper divisors (33662149391440).

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

21150413362160 is a wasteful number, since it uses less digits than its factorization.

21150413362160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72259 (or 72253 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

Adding to 21150413362160 its reverse (6126331405112), we get a palindrome (27276744767272).

The spelling of 21150413362160 in words is "twenty-one trillion, one hundred fifty billion, four hundred thirteen million, three hundred sixty-two thousand, one hundred sixty".