16441501665 has 8 divisors (see below), whose sum is σ = 26306402688. Its totient is φ = 8768800880.

The previous prime is 16441501627. The next prime is 16441501673. The reversal of 16441501665 is 56610514461.

It is a happy number.

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

It is not a de Polignac number, because 16441501665 - 2⁷ = 16441501537 is a prime.

It is a super-3 number, since 3×16441501665³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 548050041 + ... + 548050070.

It is an arithmetic number, because the mean of its divisors is an integer number (3288300336).

Almost surely, 2^16441501665 is an apocalyptic number.

16441501665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16441501665 is a deficient number, since it is larger than the sum of its proper divisors (9864901023).

16441501665 is a wasteful number, since it uses less digits than its factorization.

16441501665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096100119.

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 16441501665 in words is "sixteen billion, four hundred forty-one million, five hundred one thousand, six hundred sixty-five".