116655981 has 16 divisors (see below), whose sum is σ = 168256704. Its totient is φ = 71466624.

The previous prime is 116655967. The next prime is 116655997. The reversal of 116655981 is 189556611.

It is a de Polignac number, because none of the positive numbers 2^k-116655981 is a prime.

It is a super-2 number, since 2×116655981² = 27217235806144722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116655941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2265 + ... + 15441.

It is an arithmetic number, because the mean of its divisors is an integer number (10516044).

Almost surely, 2^116655981 is an apocalyptic number.

It is an amenable number.

116655981 is a deficient number, since it is larger than the sum of its proper divisors (51600723).

116655981 is a wasteful number, since it uses less digits than its factorization.

116655981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13420.

The product of its digits is 64800, while the sum is 42.

The square root of 116655981 is about 10800.7398357705. The cubic root of 116655981 is about 488.6174843240.

The spelling of 116655981 in words is "one hundred sixteen million, six hundred fifty-five thousand, nine hundred eighty-one".