216265273343 has 32 divisors (see below), whose sum is σ = 256590441600. Its totient is φ = 182165034240.

The previous prime is 216265273331. The next prime is 216265273361. The reversal of 216265273343 is 343372562612.

It is not a de Polignac number, because 216265273343 - 2²⁸ = 215996837887 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216265273294 and 216265273303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216265273043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6920213 + ... + 6951393.

It is an arithmetic number, because the mean of its divisors is an integer number (8018451300).

Almost surely, 2^216265273343 is an apocalyptic number.

216265273343 is a deficient number, since it is larger than the sum of its proper divisors (40325168257).

216265273343 is an equidigital number, since it uses as much as digits as its factorization.

216265273343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31552 (or 31538 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 44.

The spelling of 216265273343 in words is "two hundred sixteen billion, two hundred sixty-five million, two hundred seventy-three thousand, three hundred forty-three".