660111254433353 has 4 divisors (see below), whose sum is σ = 660793892753280. Its totient is φ = 659428616113428.

The previous prime is 660111254433283. The next prime is 660111254433373. The reversal of 660111254433353 is 353334452111066.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 660111254433353 - 2³² = 660106959466057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 660111254433298 and 660111254433307.

It is not an unprimeable number, because it can be changed into a prime (660111254433373) 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, 341319158513 + ... + 341319160446.

It is an arithmetic number, because the mean of its divisors is an integer number (165198473188320).

Almost surely, 2^{660111254433353} is an apocalyptic number.

It is an amenable number.

660111254433353 is a deficient number, since it is larger than the sum of its proper divisors (682638319927).

660111254433353 is an equidigital number, since it uses as much as digits as its factorization.

660111254433353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682638319926.

The product of its (nonzero) digits is 2332800, while the sum is 47.

The spelling of 660111254433353 in words is "six hundred sixty trillion, one hundred eleven billion, two hundred fifty-four million, four hundred thirty-three thousand, three hundred fifty-three".