116643646 has 8 divisors (see below), whose sum is σ = 199960560. Its totient is φ = 49990128.

The previous prime is 116643643. The next prime is 116643671. The reversal of 116643646 is 646346611.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116643643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4165831 + ... + 4165858.

It is an arithmetic number, because the mean of its divisors is an integer number (24995070).

Almost surely, 2^116643646 is an apocalyptic number.

116643646 is a deficient number, since it is larger than the sum of its proper divisors (83316914).

116643646 is an equidigital number, since it uses as much as digits as its factorization.

116643646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8331698.

The product of its digits is 62208, while the sum is 37.

The square root of 116643646 is about 10800.1687949772. The cubic root of 116643646 is about 488.6002618634.

The spelling of 116643646 in words is "one hundred sixteen million, six hundred forty-three thousand, six hundred forty-six".