116511326465561 has 8 divisors (see below), whose sum is σ = 118595097623040. Its totient is φ = 114431188738608.

The previous prime is 116511326465549. The next prime is 116511326465587. The reversal of 116511326465561 is 165564623115611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 116511326465561 - 2⁴² = 112113279954457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116511326465761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 908292926 + ... + 908421191.

It is an arithmetic number, because the mean of its divisors is an integer number (14824387202880).

Almost surely, 2^{116511326465561} is an apocalyptic number.

It is an amenable number.

116511326465561 is a deficient number, since it is larger than the sum of its proper divisors (2083771157479).

116511326465561 is a wasteful number, since it uses less digits than its factorization.

116511326465561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1816715263.

The product of its digits is 3888000, while the sum is 53.

The spelling of 116511326465561 in words is "one hundred sixteen trillion, five hundred eleven billion, three hundred twenty-six million, four hundred sixty-five thousand, five hundred sixty-one".