21365103324060 has 72 divisors (see below), whose sum is σ = 64808074015776. Its totient is φ = 5697308672640.

The previous prime is 21365103323999. The next prime is 21365103324079. The reversal of 21365103324060 is 6042330156312.

21365103324060 is a `hidden beast` number, since 2 + 1 + 36 + 510 + 33 + 24 + 0 + 60 = 666.

It is a super-2 number, since 2×21365103324060² (a number of 27 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 21663202 + ... + 22627958.

It is an arithmetic number, because the mean of its divisors is an integer number (900112139108).

Almost surely, 2^{21365103324060} is an apocalyptic number.

21365103324060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21365103324060 is an abundant number, since it is smaller than the sum of its proper divisors (43442970691716).

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

21365103324060 is a wasteful number, since it uses less digits than its factorization.

21365103324060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087803 (or 1087798 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 21365103324060 in words is "twenty-one trillion, three hundred sixty-five billion, one hundred three million, three hundred twenty-four thousand, sixty".