116558639 has 4 divisors (see below), whose sum is σ = 116588256. Its totient is φ = 116529024.

The previous prime is 116558633. The next prime is 116558653. The reversal of 116558639 is 936855611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 936855611 = 83 ⋅11287417.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116558639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 116558639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116558633) 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, 7799 + ... + 17144.

It is an arithmetic number, because the mean of its divisors is an integer number (29147064).

Almost surely, 2^116558639 is an apocalyptic number.

116558639 is a deficient number, since it is larger than the sum of its proper divisors (29617).

116558639 is an equidigital number, since it uses as much as digits as its factorization.

116558639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29616.

The product of its digits is 194400, while the sum is 44.

The square root of 116558639 is about 10796.2326299501. The cubic root of 116558639 is about 488.4815397620.

The spelling of 116558639 in words is "one hundred sixteen million, five hundred fifty-eight thousand, six hundred thirty-nine".