116511326465551 has 4 divisors (see below), whose sum is σ = 119220892197352. Its totient is φ = 113801760733752.

The previous prime is 116511326465549. The next prime is 116511326465587. The reversal of 116511326465551 is 155564623115611.

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

It is a cyclic number.

It is not a de Polignac number, because 116511326465551 - 2¹ = 116511326465549 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 (116511326465351) 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, 1354782865836 + ... + 1354782865921.

It is an arithmetic number, because the mean of its divisors is an integer number (29805223049338).

Almost surely, 2^{116511326465551} is an apocalyptic number.

116511326465551 is a deficient number, since it is larger than the sum of its proper divisors (2709565731801).

116511326465551 is an equidigital number, since it uses as much as digits as its factorization.

116511326465551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2709565731800.

The product of its digits is 3240000, while the sum is 52.

The spelling of 116511326465551 in words is "one hundred sixteen trillion, five hundred eleven billion, three hundred twenty-six million, four hundred sixty-five thousand, five hundred fifty-one".