115620118765 has 4 divisors (see below), whose sum is σ = 138744142524. Its totient is φ = 92496095008.

The previous prime is 115620118723. The next prime is 115620118799. The reversal of 115620118765 is 567811026511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 567811026511 = 19 ⋅29884790869.

It can be written as a sum of positive squares in 2 ways, for example, as 73472439364 + 42147679401 = 271058^2 + 205299^2 .

It is a cyclic number.

It is not a de Polignac number, because 115620118765 - 2²⁵ = 115586564333 is a prime.

It is a super-3 number, since 3×115620118765³ (a number of 34 digits) contains 333 as substring.

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 3 ways as a sum of consecutive naturals, for example, 11562011872 + ... + 11562011881.

It is an arithmetic number, because the mean of its divisors is an integer number (34686035631).

Almost surely, 2^115620118765 is an apocalyptic number.

It is an amenable number.

115620118765 is a deficient number, since it is larger than the sum of its proper divisors (23124023759).

115620118765 is an equidigital number, since it uses as much as digits as its factorization.

115620118765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23124023758.

The product of its (nonzero) digits is 100800, while the sum is 43.

The spelling of 115620118765 in words is "one hundred fifteen billion, six hundred twenty million, one hundred eighteen thousand, seven hundred sixty-five".