9160721438911 has 16 divisors (see below), whose sum is σ = 10540096603200. Its totient is φ = 7799025807360.

The previous prime is 9160721438903. The next prime is 9160721438963. The reversal of 9160721438911 is 1198341270619.

It is a cyclic number.

It is not a de Polignac number, because 9160721438911 - 2³ = 9160721438903 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 (9160721438111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26971135 + ... + 27308671.

It is an arithmetic number, because the mean of its divisors is an integer number (658756037700).

Almost surely, 2^{9160721438911} is an apocalyptic number.

9160721438911 is a deficient number, since it is larger than the sum of its proper divisors (1379375164289).

9160721438911 is a wasteful number, since it uses less digits than its factorization.

9160721438911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363714.

The product of its (nonzero) digits is 653184, while the sum is 52.

The spelling of 9160721438911 in words is "nine trillion, one hundred sixty billion, seven hundred twenty-one million, four hundred thirty-eight thousand, nine hundred eleven".