667505233443 has 4 divisors (see below), whose sum is σ = 890006977928. Its totient is φ = 445003488960.

The previous prime is 667505233441. The next prime is 667505233457. The reversal of 667505233443 is 344332505766.

667505233443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 667505233443 - 2¹ = 667505233441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 667505233392 and 667505233401.

It is not an unprimeable number, because it can be changed into a prime (667505233441) 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, 111250872238 + ... + 111250872243.

It is an arithmetic number, because the mean of its divisors is an integer number (222501744482).

Almost surely, 2^667505233443 is an apocalyptic number.

667505233443 is a deficient number, since it is larger than the sum of its proper divisors (222501744485).

667505233443 is a wasteful number, since it uses less digits than its factorization.

667505233443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222501744484.

The product of its (nonzero) digits is 5443200, while the sum is 48.

The spelling of 667505233443 in words is "six hundred sixty-seven billion, five hundred five million, two hundred thirty-three thousand, four hundred forty-three".