115120100557165 has 32 divisors (see below), whose sum is σ = 157527507338496. Its totient is φ = 79944754728960.

The previous prime is 115120100557123. The next prime is 115120100557219. The reversal of 115120100557165 is 561755001021511.

It is not a de Polignac number, because 115120100557165 - 2⁹ = 115120100556653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78129742 + ... + 79589551.

It is an arithmetic number, because the mean of its divisors is an integer number (4922734604328).

Almost surely, 2^{115120100557165} is an apocalyptic number.

It is an amenable number.

115120100557165 is a deficient number, since it is larger than the sum of its proper divisors (42407406781331).

115120100557165 is a wasteful number, since it uses less digits than its factorization.

115120100557165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157719909.

The product of its (nonzero) digits is 52500, while the sum is 40.

Adding to 115120100557165 its reverse (561755001021511), we get a palindrome (676875101578676).

The spelling of 115120100557165 in words is "one hundred fifteen trillion, one hundred twenty billion, one hundred million, five hundred fifty-seven thousand, one hundred sixty-five".