21364123356060 has 192 divisors, whose sum is σ = 61116590997504. Its totient is φ = 5574920198400.

The previous prime is 21364123356031. The next prime is 21364123356101. The reversal of 21364123356060 is 6065332146312.

It is a congruent number.

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, 329849239 + ... + 329914001.

It is an arithmetic number, because the mean of its divisors is an integer number (318315578112).

Almost surely, 2^{21364123356060} is an apocalyptic number.

21364123356060 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 21364123356060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30558295498752).

21364123356060 is an abundant number, since it is smaller than the sum of its proper divisors (39752467641444).

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

21364123356060 is a wasteful number, since it uses less digits than its factorization.

21364123356060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65424 (or 65422 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 42.

The spelling of 21364123356060 in words is "twenty-one trillion, three hundred sixty-four billion, one hundred twenty-three million, three hundred fifty-six thousand, sixty".