11613620653165 has 4 divisors (see below), whose sum is σ = 13936344783804. Its totient is φ = 9290896522528.

The previous prime is 11613620653153. The next prime is 11613620653183. The reversal of 11613620653165 is 56135602631611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7177158876484 + 4436461776681 = 2679022^2 + 2106291^2 .

It is a cyclic number.

It is not a de Polignac number, because 11613620653165 - 2²⁵ = 11613587098733 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 3 ways as a sum of consecutive naturals, for example, 1161362065312 + ... + 1161362065321.

It is an arithmetic number, because the mean of its divisors is an integer number (3484086195951).

Almost surely, 2^{11613620653165} is an apocalyptic number.

It is an amenable number.

11613620653165 is a deficient number, since it is larger than the sum of its proper divisors (2322724130639).

11613620653165 is an equidigital number, since it uses as much as digits as its factorization.

11613620653165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322724130638.

The product of its (nonzero) digits is 583200, while the sum is 46.

The spelling of 11613620653165 in words is "eleven trillion, six hundred thirteen billion, six hundred twenty million, six hundred fifty-three thousand, one hundred sixty-five".