16441649279 has 6 divisors (see below), whose sum is σ = 18072226200. Its totient is φ = 14946953780.

The previous prime is 16441649261. The next prime is 16441649293. The reversal of 16441649279 is 97294614461.

It is a de Polignac number, because none of the positive numbers 2^k-16441649279 is a prime.

It is a super-3 number, since 3×16441649279³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16441649279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16441649249) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67940579 + ... + 67940820.

It is an arithmetic number, because the mean of its divisors is an integer number (3012037700).

Almost surely, 2^16441649279 is an apocalyptic number.

16441649279 is a deficient number, since it is larger than the sum of its proper divisors (1630576921).

16441649279 is a wasteful number, since it uses less digits than its factorization.

16441649279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135881421 (or 135881410 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 53.

The spelling of 16441649279 in words is "sixteen billion, four hundred forty-one million, six hundred forty-nine thousand, two hundred seventy-nine".