21486012050160 has 480 divisors, whose sum is σ = 86104424589120. Its totient is φ = 4910277722112.

The previous prime is 21486012050147. The next prime is 21486012050161. The reversal of 21486012050160 is 6105021068412.

It is a happy number.

21486012050160 is a `hidden beast` number, since 2 + 1 + 4 + 86 + 0 + 12 + 0 + 501 + 60 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21486012050161) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 840039292 + ... + 840064868.

It is an arithmetic number, because the mean of its divisors is an integer number (179384217894).

Almost surely, 2^{21486012050160} is an apocalyptic number.

21486012050160 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 21486012050160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43052212294560).

21486012050160 is an abundant number, since it is smaller than the sum of its proper divisors (64618412538960).

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

21486012050160 is a wasteful number, since it uses less digits than its factorization.

21486012050160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33550 (or 33531 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 21486012050160 in words is "twenty-one trillion, four hundred eighty-six billion, twelve million, fifty thousand, one hundred sixty".