1601165203303 has 8 divisors (see below), whose sum is σ = 1627209957872. Its totient is φ = 1575183589056.

The previous prime is 1601165203271. The next prime is 1601165203367. The reversal of 1601165203303 is 3033025611061.

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 1601165203303 - 2⁵ = 1601165203271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601165203373) 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, 15733950 + ... + 15835387.

It is an arithmetic number, because the mean of its divisors is an integer number (203401244734).

Almost surely, 2^{1601165203303} is an apocalyptic number.

1601165203303 is a deficient number, since it is larger than the sum of its proper divisors (26044754569).

1601165203303 is an equidigital number, since it uses as much as digits as its factorization.

1601165203303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31570161.

The product of its (nonzero) digits is 9720, while the sum is 31.

The spelling of 1601165203303 in words is "one trillion, six hundred one billion, one hundred sixty-five million, two hundred three thousand, three hundred three".