116287661 has 8 divisors (see below), whose sum is σ = 132976704. Its totient is φ = 99617760.

The previous prime is 116287607. The next prime is 116287669. The reversal of 116287661 is 166782611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 116287661 - 2⁶ = 116287597 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116287669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12326 + ... + 19608.

It is an arithmetic number, because the mean of its divisors is an integer number (16622088).

Almost surely, 2^116287661 is an apocalyptic number.

It is an amenable number.

116287661 is a deficient number, since it is larger than the sum of its proper divisors (16689043).

116287661 is an equidigital number, since it uses as much as digits as its factorization.

116287661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9571.

The product of its digits is 24192, while the sum is 38.

The square root of 116287661 is about 10783.6756720517. The cubic root of 116287661 is about 488.1027019466.

The spelling of 116287661 in words is "one hundred sixteen million, two hundred eighty-seven thousand, six hundred sixty-one".