11615413623461 has 4 divisors (see below), whose sum is σ = 11675597113932. Its totient is φ = 11555230132992.

The previous prime is 11615413623409. The next prime is 11615413623491. The reversal of 11615413623461 is 16432631451611.

It is a happy number.

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 1219270890436 + 10396142733025 = 1104206^2 + 3224305^2 .

It is a cyclic number.

It is not a de Polignac number, because 11615413623461 - 2¹⁸ = 11615413361317 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 (11615413623491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30091744946 + ... + 30091745331.

It is an arithmetic number, because the mean of its divisors is an integer number (2918899278483).

Almost surely, 2^{11615413623461} is an apocalyptic number.

It is an amenable number.

11615413623461 is a deficient number, since it is larger than the sum of its proper divisors (60183490471).

11615413623461 is an equidigital number, since it uses as much as digits as its factorization.

11615413623461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60183490470.

The product of its digits is 311040, while the sum is 44.

The spelling of 11615413623461 in words is "eleven trillion, six hundred fifteen billion, four hundred thirteen million, six hundred twenty-three thousand, four hundred sixty-one".