16117559458 has 32 divisors (see below), whose sum is σ = 32460543360. Its totient is φ = 5796524160.

The previous prime is 16117559443. The next prime is 16117559473. The reversal of 16117559458 is 85495571161.

It is an interprime number because it is at equal distance from previous prime (16117559443) and next prime (16117559473).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4023363 + ... + 4027366.

It is an arithmetic number, because the mean of its divisors is an integer number (1014391980).

Almost surely, 2^16117559458 is an apocalyptic number.

16117559458 is an abundant number, since it is smaller than the sum of its proper divisors (16342983902).

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

16117559458 is a wasteful number, since it uses less digits than its factorization.

16117559458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8050762.

The product of its digits is 1512000, while the sum is 52.

It can be divided in two parts, 16117 and 559458, that added together give a palindrome (575575).

The spelling of 16117559458 in words is "sixteen billion, one hundred seventeen million, five hundred fifty-nine thousand, four hundred fifty-eight".