16961584218 has 16 divisors (see below), whose sum is σ = 35017464576. Its totient is φ = 5471478720.

The previous prime is 16961584201. The next prime is 16961584231. The reversal of 16961584218 is 81248516961.

It is a happy 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, 45595471 + ... + 45595842.

It is an arithmetic number, because the mean of its divisors is an integer number (2188591536).

Almost surely, 2^16961584218 is an apocalyptic number.

16961584218 is an abundant number, since it is smaller than the sum of its proper divisors (18055880358).

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

16961584218 is a wasteful number, since it uses less digits than its factorization.

16961584218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91191349.

The product of its digits is 829440, while the sum is 51.

The spelling of 16961584218 in words is "sixteen billion, nine hundred sixty-one million, five hundred eighty-four thousand, two hundred eighteen".