221605161083 has 8 divisors (see below), whose sum is σ = 222594794880. Its totient is φ = 220615718400.

The previous prime is 221605161031. The next prime is 221605161103. The reversal of 221605161083 is 380161506122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221605161083 - 2²⁰ = 221604112507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221605163083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2603291 + ... + 2687067.

It is an arithmetic number, because the mean of its divisors is an integer number (27824349360).

Almost surely, 2^221605161083 is an apocalyptic number.

221605161083 is a deficient number, since it is larger than the sum of its proper divisors (989633797).

221605161083 is a wasteful number, since it uses less digits than its factorization.

221605161083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95557.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 221605161083 in words is "two hundred twenty-one billion, six hundred five million, one hundred sixty-one thousand, eighty-three".