116661047 has 4 divisors (see below), whose sum is σ = 117034080. Its totient is φ = 116288016.

The previous prime is 116661019. The next prime is 116661049. The reversal of 116661047 is 740166611.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 116661047 - 2¹⁰ = 116660023 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 (116661049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186047 + ... + 186672.

It is an arithmetic number, because the mean of its divisors is an integer number (29258520).

Almost surely, 2^116661047 is an apocalyptic number.

116661047 is a deficient number, since it is larger than the sum of its proper divisors (373033).

116661047 is an equidigital number, since it uses as much as digits as its factorization.

116661047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373032.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 116661047 is about 10800.9743541960. The cubic root of 116661047 is about 488.6245572585.

The spelling of 116661047 in words is "one hundred sixteen million, six hundred sixty-one thousand, forty-seven".