21602350373603 has 16 divisors (see below), whose sum is σ = 22814161117440. Its totient is φ = 20398028666400.

The previous prime is 21602350373587. The next prime is 21602350373701. The reversal of 21602350373603 is 30637305320612.

It is a cyclic number.

It is not a de Polignac number, because 21602350373603 - 2⁴ = 21602350373587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21602350343603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273300698 + ... + 273379728.

It is an arithmetic number, because the mean of its divisors is an integer number (1425885069840).

Almost surely, 2^{21602350373603} is an apocalyptic number.

21602350373603 is a deficient number, since it is larger than the sum of its proper divisors (1211810743837).

21602350373603 is a wasteful number, since it uses less digits than its factorization.

21602350373603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126218.

The product of its (nonzero) digits is 408240, while the sum is 41.

The spelling of 21602350373603 in words is "twenty-one trillion, six hundred two billion, three hundred fifty million, three hundred seventy-three thousand, six hundred three".