345365440331663 has 4 divisors (see below), whose sum is σ = 345586970442480. Its totient is φ = 345143910220848.

The previous prime is 345365440331551. The next prime is 345365440331707. The reversal of 345365440331663 is 366133044563543.

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

It is a cyclic number.

It is not a de Polignac number, because 345365440331663 - 2²⁰ = 345365439283087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 345365440331599 and 345365440331608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345365440330663) 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, 110765053070 + ... + 110765056187.

It is an arithmetic number, because the mean of its divisors is an integer number (86396742610620).

Almost surely, 2^{345365440331663} is an apocalyptic number.

345365440331663 is a deficient number, since it is larger than the sum of its proper divisors (221530110817).

345365440331663 is a wasteful number, since it uses less digits than its factorization.

345365440331663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221530110816.

The product of its (nonzero) digits is 83980800, while the sum is 56.

The spelling of 345365440331663 in words is "three hundred forty-five trillion, three hundred sixty-five billion, four hundred forty million, three hundred thirty-one thousand, six hundred sixty-three".