16485340345 has 8 divisors (see below), whose sum is σ = 19798887240. Its totient is φ = 13177286400.

The previous prime is 16485340331. The next prime is 16485340349. The reversal of 16485340345 is 54304358461.

It can be written as a sum of positive squares in 4 ways, for example, as 683090496 + 15802249849 = 26136^2 + 125707^2 .

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

It is not a de Polignac number, because 16485340345 - 2³¹ = 14337856697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16485340349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1366630 + ... + 1378639.

It is an arithmetic number, because the mean of its divisors is an integer number (2474860905).

Almost surely, 2^16485340345 is an apocalyptic number.

It is an amenable number.

16485340345 is a deficient number, since it is larger than the sum of its proper divisors (3313546895).

16485340345 is a wasteful number, since it uses less digits than its factorization.

16485340345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2746475.

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 16485340345 in words is "sixteen billion, four hundred eighty-five million, three hundred forty thousand, three hundred forty-five".