13531660345 has 8 divisors (see below), whose sum is σ = 18557705664. Its totient is φ = 9278852784.

The previous prime is 13531660339. The next prime is 13531660361. The reversal of 13531660345 is 54306613531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13531660345 - 2¹³ = 13531652153 is a prime.

It is a Duffinian number.

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, 193309399 + ... + 193309468.

It is an arithmetic number, because the mean of its divisors is an integer number (2319713208).

Almost surely, 2^13531660345 is an apocalyptic number.

It is an amenable number.

13531660345 is a deficient number, since it is larger than the sum of its proper divisors (5026045319).

13531660345 is an equidigital number, since it uses as much as digits as its factorization.

13531660345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386618879.

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 13531660345 in words is "thirteen billion, five hundred thirty-one million, six hundred sixty thousand, three hundred forty-five".