21602543333516 has 24 divisors (see below), whose sum is σ = 40038425266896. Its totient is φ = 10163316533760.

The previous prime is 21602543333479. The next prime is 21602543333551. The reversal of 21602543333516 is 61533334520612.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40140281 + ... + 40674896.

It is an arithmetic number, because the mean of its divisors is an integer number (1668267719454).

Almost surely, 2^{21602543333516} is an apocalyptic number.

It is an amenable number.

21602543333516 is a deficient number, since it is larger than the sum of its proper divisors (18435881933380).

21602543333516 is a wasteful number, since it uses less digits than its factorization.

21602543333516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80819129 (or 80819127 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 44.

The spelling of 21602543333516 in words is "twenty-one trillion, six hundred two billion, five hundred forty-three million, three hundred thirty-three thousand, five hundred sixteen".