16664825349 has 12 divisors (see below), whose sum is σ = 25338331200. Its totient is φ = 10525152744.

The previous prime is 16664825339. The next prime is 16664825393. The reversal of 16664825349 is 94352846661.

It is not a de Polignac number, because 16664825349 - 2¹² = 16664821253 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 16664825295 and 16664825304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16664825339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48727389 + ... + 48727730.

It is an arithmetic number, because the mean of its divisors is an integer number (2111527600).

Almost surely, 2^16664825349 is an apocalyptic number.

16664825349 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

16664825349 is a deficient number, since it is larger than the sum of its proper divisors (8673505851).

16664825349 is a wasteful number, since it uses less digits than its factorization.

16664825349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97455144 (or 97455141 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 16664825349 in words is "sixteen billion, six hundred sixty-four million, eight hundred twenty-five thousand, three hundred forty-nine".