13661311156324 has 24 divisors (see below), whose sum is σ = 25746459742080. Its totient is φ = 6305185620384.

The previous prime is 13661311156313. The next prime is 13661311156343. The reversal of 13661311156324 is 42365111316631.

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, 10364997 + ... + 11608435.

It is an arithmetic number, because the mean of its divisors is an integer number (1072769155920).

Almost surely, 2^{13661311156324} is an apocalyptic number.

It is an amenable number.

13661311156324 is a deficient number, since it is larger than the sum of its proper divisors (12085148585756).

13661311156324 is a wasteful number, since it uses less digits than its factorization.

13661311156324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454739 (or 1454737 counting only the distinct ones).

The product of its digits is 233280, while the sum is 43.

The spelling of 13661311156324 in words is "thirteen trillion, six hundred sixty-one billion, three hundred eleven million, one hundred fifty-six thousand, three hundred twenty-four".