21213362306160 has 240 divisors, whose sum is σ = 73620098199648. Its totient is φ = 5470633728000.

The previous prime is 21213362306093. The next prime is 21213362306177. The reversal of 21213362306160 is 6160326331212.

21213362306160 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 3 + 3 + 6 + 2 + 30 + 616 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is a congruent number.

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, 265051 + ... + 6518970.

Almost surely, 2^{21213362306160} is an apocalyptic number.

21213362306160 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 21213362306160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36810049099824).

21213362306160 is an abundant number, since it is smaller than the sum of its proper divisors (52406735893488).

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

21213362306160 is a wasteful number, since it uses less digits than its factorization.

21213362306160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6784184 (or 6784175 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

Adding to 21213362306160 its reverse (6160326331212), we get a palindrome (27373688637372).

The spelling of 21213362306160 in words is "twenty-one trillion, two hundred thirteen billion, three hundred sixty-two million, three hundred six thousand, one hundred sixty".