16440164886 has 8 divisors (see below), whose sum is σ = 32880329784. Its totient is φ = 5480054960.

The previous prime is 16440164879. The next prime is 16440164893. The reversal of 16440164886 is 68846104461.

It is an interprime number because it is at equal distance from previous prime (16440164879) and next prime (16440164893).

It is a sphenic number, since it is the product of 3 distinct primes.

16440164886 is an admirable number.

It is a super-3 number, since 3×16440164886³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1370013735 + ... + 1370013746.

It is an arithmetic number, because the mean of its divisors is an integer number (4110041223).

Almost surely, 2^16440164886 is an apocalyptic number.

16440164886 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16440164886 is a wasteful number, since it uses less digits than its factorization.

16440164886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740027486.

The product of its (nonzero) digits is 884736, while the sum is 48.

The spelling of 16440164886 in words is "sixteen billion, four hundred forty million, one hundred sixty-four thousand, eight hundred eighty-six".