1620603332223 has 8 divisors (see below), whose sum is σ = 2160820242048. Its totient is φ = 1080394321944.

The previous prime is 1620603332221. The next prime is 1620603332317. The reversal of 1620603332223 is 3222333060261.

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

It is not a de Polignac number, because 1620603332223 - 2¹ = 1620603332221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1620603332221) 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, 1478365 + ... + 2329542.

It is an arithmetic number, because the mean of its divisors is an integer number (270102530256).

Almost surely, 2^{1620603332223} is an apocalyptic number.

1620603332223 is a deficient number, since it is larger than the sum of its proper divisors (540216909825).

1620603332223 is a wasteful number, since it uses less digits than its factorization.

1620603332223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3949773.

The product of its (nonzero) digits is 46656, while the sum is 33.

Adding to 1620603332223 its reverse (3222333060261), we get a palindrome (4842936392484).

The spelling of 1620603332223 in words is "one trillion, six hundred twenty billion, six hundred three million, three hundred thirty-two thousand, two hundred twenty-three".