15661163424374 has 8 divisors (see below), whose sum is σ = 25298802454800. Its totient is φ = 7228229272776.

The previous prime is 15661163424373. The next prime is 15661163424377. The reversal of 15661163424374 is 47342436116651.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15661163424373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301176219674 + ... + 301176219725.

It is an arithmetic number, because the mean of its divisors is an integer number (3162350306850).

Almost surely, 2^{15661163424374} is an apocalyptic number.

15661163424374 is a deficient number, since it is larger than the sum of its proper divisors (9637639030426).

15661163424374 is a wasteful number, since it uses less digits than its factorization.

15661163424374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602352439414.

The product of its digits is 8709120, while the sum is 53.

The spelling of 15661163424374 in words is "fifteen trillion, six hundred sixty-one billion, one hundred sixty-three million, four hundred twenty-four thousand, three hundred seventy-four".