21403341158460 has 192 divisors, whose sum is σ = 61283609275392. Its totient is φ = 5580459894784.

The previous prime is 21403341158399. The next prime is 21403341158471. The reversal of 21403341158460 is 6485114330412.

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, 152090089 + ... + 152230751.

It is an arithmetic number, because the mean of its divisors is an integer number (319185464976).

Almost surely, 2^{21403341158460} is an apocalyptic number.

21403341158460 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 21403341158460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30641804637696).

21403341158460 is an abundant number, since it is smaller than the sum of its proper divisors (39880268116932).

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

21403341158460 is a wasteful number, since it uses less digits than its factorization.

21403341158460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141092 (or 141090 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

Adding to 21403341158460 its reverse (6485114330412), we get a palindrome (27888455488872).

The spelling of 21403341158460 in words is "twenty-one trillion, four hundred three billion, three hundred forty-one million, one hundred fifty-eight thousand, four hundred sixty".