9917087048165 has 8 divisors (see below), whose sum is σ = 12982368499488. Its totient is φ = 7212426944080.

The previous prime is 9917087048161. The next prime is 9917087048221. The reversal of 9917087048165 is 5618407807199.

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

It is not a de Polignac number, because 9917087048165 - 2² = 9917087048161 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 (9917087048161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90155336747 + ... + 90155336856.

It is an arithmetic number, because the mean of its divisors is an integer number (1622796062436).

Almost surely, 2^{9917087048165} is an apocalyptic number.

It is an amenable number.

9917087048165 is a deficient number, since it is larger than the sum of its proper divisors (3065281451323).

9917087048165 is a wasteful number, since it uses less digits than its factorization.

9917087048165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180310673619.

The product of its (nonzero) digits is 30481920, while the sum is 65.

The spelling of 9917087048165 in words is "nine trillion, nine hundred seventeen billion, eighty-seven million, forty-eight thousand, one hundred sixty-five".