115615166501551 has 8 divisors (see below), whose sum is σ = 116047399522608. Its totient is φ = 115183080936000.

The previous prime is 115615166501509. The next prime is 115615166501557. The reversal of 115615166501551 is 155105661516511.

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 115615166501551 - 2¹⁹ = 115615165977263 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115615166501495 and 115615166501504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115615166501557) 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, 35292685 + ... + 38429206.

It is an arithmetic number, because the mean of its divisors is an integer number (14505924940326).

Almost surely, 2^{115615166501551} is an apocalyptic number.

115615166501551 is a deficient number, since it is larger than the sum of its proper divisors (432233021057).

115615166501551 is an equidigital number, since it uses as much as digits as its factorization.

115615166501551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73727753.

The product of its (nonzero) digits is 675000, while the sum is 49.

The spelling of 115615166501551 in words is "one hundred fifteen trillion, six hundred fifteen billion, one hundred sixty-six million, five hundred one thousand, five hundred fifty-one".