16441348666 has 16 divisors (see below), whose sum is σ = 25874915328. Its totient is φ = 7825071600.

The previous prime is 16441348643. The next prime is 16441348667. The reversal of 16441348666 is 66684314461.

It is a super-4 number, since 4×16441348666⁴ (a number of 42 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is not an unprimeable number, because it can be changed into a prime (16441348667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2169850 + ... + 2177413.

It is an arithmetic number, because the mean of its divisors is an integer number (1617182208).

Almost surely, 2^16441348666 is an apocalyptic number.

16441348666 is a deficient number, since it is larger than the sum of its proper divisors (9433566662).

16441348666 is a wasteful number, since it uses less digits than its factorization.

16441348666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4347357.

The product of its digits is 1990656, while the sum is 49.

The spelling of 16441348666 in words is "sixteen billion, four hundred forty-one million, three hundred forty-eight thousand, six hundred sixty-six".