116566222155 has 32 divisors (see below), whose sum is σ = 188389877760. Its totient is φ = 61543799040.

The previous prime is 116566222153. The next prime is 116566222193. The reversal of 116566222155 is 551222665611.

It is not a de Polignac number, because 116566222155 - 2¹ = 116566222153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (116566222151) 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, 501415 + ... + 696095.

It is an arithmetic number, because the mean of its divisors is an integer number (5887183680).

Almost surely, 2^116566222155 is an apocalyptic number.

116566222155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

116566222155 is a deficient number, since it is larger than the sum of its proper divisors (71823655605).

116566222155 is a wasteful number, since it uses less digits than its factorization.

116566222155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195091.

The product of its digits is 216000, while the sum is 42.

Adding to 116566222155 its reverse (551222665611), we get a palindrome (667788887766).

The spelling of 116566222155 in words is "one hundred sixteen billion, five hundred sixty-six million, two hundred twenty-two thousand, one hundred fifty-five".