116121611566155 has 32 divisors (see below), whose sum is σ = 203861685577536. Its totient is φ = 56088929355264.

The previous prime is 116121611566153. The next prime is 116121611566183. The reversal of 116121611566155 is 551665116121611.

It is a happy number.

It is not a de Polignac number, because 116121611566155 - 2¹ = 116121611566153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (116121611566153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5617871212 + ... + 5617891881.

It is an arithmetic number, because the mean of its divisors is an integer number (6370677674298).

Almost surely, 2^{116121611566155} is an apocalyptic number.

116121611566155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

116121611566155 is a deficient number, since it is larger than the sum of its proper divisors (87740074011381).

116121611566155 is a wasteful number, since it uses less digits than its factorization.

116121611566155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11235763167.

The product of its digits is 324000, while the sum is 48.

Adding to 116121611566155 its reverse (551665116121611), we get a palindrome (667786727687766).

The spelling of 116121611566155 in words is "one hundred sixteen trillion, one hundred twenty-one billion, six hundred eleven million, five hundred sixty-six thousand, one hundred fifty-five".