13345345205442 has 16 divisors (see below), whose sum is σ = 29656322678880. Its totient is φ = 4448448401796.

The previous prime is 13345345205431. The next prime is 13345345205503. The reversal of 13345345205442 is 24450254354331.

13345345205442 is a `hidden beast` number, since 1 + 3 + 3 + 4 + 5 + 34 + 520 + 54 + 42 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123568011108 + ... + 123568011215.

It is an arithmetic number, because the mean of its divisors is an integer number (1853520167430).

Almost surely, 2^{13345345205442} is an apocalyptic number.

13345345205442 is an abundant number, since it is smaller than the sum of its proper divisors (16310977473438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13345345205442 is a wasteful number, since it uses less digits than its factorization.

13345345205442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247136022334 (or 247136022328 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 45.

Adding to 13345345205442 its reverse (24450254354331), we get a palindrome (37795599559773).

The spelling of 13345345205442 in words is "thirteen trillion, three hundred forty-five billion, three hundred forty-five million, two hundred five thousand, four hundred forty-two".