15660556666151 has 8 divisors (see below), whose sum is σ = 15726357266400. Its totient is φ = 15594893009280.

The previous prime is 15660556666129. The next prime is 15660556666187. The reversal of 15660556666151 is 15166665506651.

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 a de Polignac number, because none of the positive numbers 2^k-15660556666151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15660556666121) 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 7 ways as a sum of consecutive naturals, for example, 34006646 + ... + 34464083.

It is an arithmetic number, because the mean of its divisors is an integer number (1965794658300).

Almost surely, 2^{15660556666151} is an apocalyptic number.

15660556666151 is a deficient number, since it is larger than the sum of its proper divisors (65800600249).

15660556666151 is an equidigital number, since it uses as much as digits as its factorization.

15660556666151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68471689.

The product of its (nonzero) digits is 29160000, while the sum is 59.

The spelling of 15660556666151 in words is "fifteen trillion, six hundred sixty billion, five hundred fifty-six million, six hundred sixty-six thousand, one hundred fifty-one".