116605661 has 8 divisors (see below), whose sum is σ = 118752480. Its totient is φ = 114470928.

The previous prime is 116605651. The next prime is 116605667. The reversal of 116605661 is 166506611.

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 116605661 - 2¹⁰ = 116604637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116605667) 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, 17735 + ... + 23403.

It is an arithmetic number, because the mean of its divisors is an integer number (14844060).

Almost surely, 2^116605661 is an apocalyptic number.

It is an amenable number.

116605661 is a deficient number, since it is larger than the sum of its proper divisors (2146819).

116605661 is an equidigital number, since it uses as much as digits as its factorization.

116605661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6043.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 116605661 is about 10798.4101144567. The cubic root of 116605661 is about 488.5472185513.

The spelling of 116605661 in words is "one hundred sixteen million, six hundred five thousand, six hundred sixty-one".