13661343415 has 8 divisors (see below), whose sum is σ = 16395084720. Its totient is φ = 10928092992.

The previous prime is 13661343401. The next prime is 13661343431. The reversal of 13661343415 is 51434316631.

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 13661343415 - 2¹¹ = 13661341367 is a prime.

It is a congruent 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, 58429 + ... + 175318.

It is an arithmetic number, because the mean of its divisors is an integer number (2049385590).

Almost surely, 2^13661343415 is an apocalyptic number.

13661343415 is a deficient number, since it is larger than the sum of its proper divisors (2733741305).

13661343415 is a wasteful number, since it uses less digits than its factorization.

13661343415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245441.

The product of its digits is 77760, while the sum is 37.

The spelling of 13661343415 in words is "thirteen billion, six hundred sixty-one million, three hundred forty-three thousand, four hundred fifteen".