116660420589 has 4 divisors (see below), whose sum is σ = 155547227456. Its totient is φ = 77773613724.

The previous prime is 116660420557. The next prime is 116660420593. The reversal of 116660420589 is 985024066611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 116660420589 - 2⁵ = 116660420557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116660420599) 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, 19443403429 + ... + 19443403434.

It is an arithmetic number, because the mean of its divisors is an integer number (38886806864).

Almost surely, 2^116660420589 is an apocalyptic number.

It is an amenable number.

116660420589 is a deficient number, since it is larger than the sum of its proper divisors (38886806867).

116660420589 is an equidigital number, since it uses as much as digits as its factorization.

116660420589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38886806866.

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 116660420589 in words is "one hundred sixteen billion, six hundred sixty million, four hundred twenty thousand, five hundred eighty-nine".