2165411456303 has 4 divisors (see below), whose sum is σ = 2166809399400. Its totient is φ = 2164013513208.

The previous prime is 2165411456281. The next prime is 2165411456309. The reversal of 2165411456303 is 3036541145612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2165411456303 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 (2165411456309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 698969225 + ... + 698972322.

It is an arithmetic number, because the mean of its divisors is an integer number (541702349850).

Almost surely, 2^{2165411456303} is an apocalyptic number.

2165411456303 is a deficient number, since it is larger than the sum of its proper divisors (1397943097).

2165411456303 is a wasteful number, since it uses less digits than its factorization.

2165411456303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397943096.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 2165411456303 in words is "two trillion, one hundred sixty-five billion, four hundred eleven million, four hundred fifty-six thousand, three hundred three".