21602041014543 has 48 divisors (see below), whose sum is σ = 32523546488160. Its totient is φ = 12734894684160.

The previous prime is 21602041014461. The next prime is 21602041014553. The reversal of 21602041014543 is 34541014020612.

It is a happy number.

It is not a de Polignac number, because 21602041014543 - 2⁴⁰ = 20502529386767 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21602041014553) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50408071 + ... + 50834807.

It is an arithmetic number, because the mean of its divisors is an integer number (677573885170).

Almost surely, 2^{21602041014543} is an apocalyptic number.

21602041014543 is a deficient number, since it is larger than the sum of its proper divisors (10921505473617).

21602041014543 is a wasteful number, since it uses less digits than its factorization.

21602041014543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430568 (or 430557 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 21602041014543 in words is "twenty-one trillion, six hundred two billion, forty-one million, fourteen thousand, five hundred forty-three".