2161446323503 has 8 divisors (see below), whose sum is σ = 2208380833728. Its totient is φ = 2114551242144.

The previous prime is 2161446323497. The next prime is 2161446323573. The reversal of 2161446323503 is 3053236441612.

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 2161446323503 - 2⁵ = 2161446323471 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 (2161446323573) 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, 9746376 + ... + 9965677.

It is an arithmetic number, because the mean of its divisors is an integer number (276047604216).

Almost surely, 2^{2161446323503} is an apocalyptic number.

2161446323503 is a deficient number, since it is larger than the sum of its proper divisors (46934510225).

2161446323503 is a wasteful number, since it uses less digits than its factorization.

2161446323503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19714433.

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 2161446323503 in words is "two trillion, one hundred sixty-one billion, four hundred forty-six million, three hundred twenty-three thousand, five hundred three".