21818486586060 has 192 divisors, whose sum is σ = 67993749734400. Its totient is φ = 5808497485824.

The previous prime is 21818486585969. The next prime is 21818486586119. The reversal of 21818486586060 is 6068568481812.

21818486586060 is a `hidden beast` number, since 2 + 1 + 8 + 1 + 8 + 48 + 6 + 586 + 0 + 6 + 0 = 666.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1029794787 + ... + 1029815973.

It is an arithmetic number, because the mean of its divisors is an integer number (354134113200).

Almost surely, 2^{21818486586060} is an apocalyptic number.

21818486586060 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 21818486586060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33996874867200).

21818486586060 is an abundant number, since it is smaller than the sum of its proper divisors (46175263148340).

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

21818486586060 is a wasteful number, since it uses less digits than its factorization.

21818486586060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24317 (or 24309 counting only the distinct ones).

The product of its (nonzero) digits is 35389440, while the sum is 63.

The spelling of 21818486586060 in words is "twenty-one trillion, eight hundred eighteen billion, four hundred eighty-six million, five hundred eighty-six thousand, sixty".