116421558 has 16 divisors (see below), whose sum is σ = 254010816. Its totient is φ = 35279240.

The previous prime is 116421541. The next prime is 116421563. The reversal of 116421558 is 855124611.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 881916 + ... + 882047.

It is an arithmetic number, because the mean of its divisors is an integer number (15875676).

Almost surely, 2^116421558 is an apocalyptic number.

116421558 is an abundant number, since it is smaller than the sum of its proper divisors (137589258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

116421558 is a wasteful number, since it uses less digits than its factorization.

116421558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1763979.

The product of its digits is 9600, while the sum is 33.

The square root of 116421558 is about 10789.8822051031. The cubic root of 116421558 is about 488.2899686462.

It can be divided in two parts, 1164 and 21558, that added together give a palindrome (22722).

The spelling of 116421558 in words is "one hundred sixteen million, four hundred twenty-one thousand, five hundred fifty-eight".