116511001155 has 32 divisors (see below), whose sum is σ = 207146022720. Its totient is φ = 62134594560.

The previous prime is 116511001133. The next prime is 116511001157. The reversal of 116511001155 is 551100115611.

116511001155 is a `hidden beast` number, since 1 + 1 + 651 + 1 + 0 + 0 + 1 + 1 + 5 + 5 = 666.

It is not a de Polignac number, because 116511001155 - 2⁶ = 116511001091 is a prime.

It is a super-2 number, since 2×116511001155² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (116511001157) 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, 2587635 + ... + 2632275.

It is an arithmetic number, because the mean of its divisors is an integer number (6473313210).

Almost surely, 2^116511001155 is an apocalyptic number.

116511001155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

116511001155 is a deficient number, since it is larger than the sum of its proper divisors (90635021565).

116511001155 is a wasteful number, since it uses less digits than its factorization.

116511001155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63988 (or 63982 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 27.

Adding to 116511001155 its reverse (551100115611), we get a palindrome (667611116766).

The spelling of 116511001155 in words is "one hundred sixteen billion, five hundred eleven million, one thousand, one hundred fifty-five".