116550072155981 has 16 divisors (see below), whose sum is σ = 124037747496000. Its totient is φ = 109204103841408.

The previous prime is 116550072155969. The next prime is 116550072156073. The reversal of 116550072155981 is 189551270055611.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 116550072155981 - 2⁶ = 116550072155917 is a prime.

It is a super-2 number, since 2×116550072155981² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116550072655981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87686351 + ... + 89005596.

It is an arithmetic number, because the mean of its divisors is an integer number (7752359218500).

Almost surely, 2^{116550072155981} is an apocalyptic number.

It is an amenable number.

116550072155981 is a deficient number, since it is larger than the sum of its proper divisors (7487675340019).

116550072155981 is a wasteful number, since it uses less digits than its factorization.

116550072155981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176692348.

The product of its (nonzero) digits is 3780000, while the sum is 56.

The spelling of 116550072155981 in words is "one hundred sixteen trillion, five hundred fifty billion, seventy-two million, one hundred fifty-five thousand, nine hundred eighty-one".