16346645605 has 8 divisors (see below), whose sum is σ = 19697370264. Its totient is φ = 13023052800.

The previous prime is 16346645603. The next prime is 16346645633. The reversal of 16346645605 is 50654664361.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 243796996 + 16102848609 = 15614^2 + 126897^2 .

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

It is not a de Polignac number, because 16346645605 - 2¹ = 16346645603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16346645603) 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, 6781636 + ... + 6784045.

It is an arithmetic number, because the mean of its divisors is an integer number (2462171283).

Almost surely, 2^16346645605 is an apocalyptic number.

It is an amenable number.

16346645605 is a deficient number, since it is larger than the sum of its proper divisors (3350724659).

16346645605 is a wasteful number, since it uses less digits than its factorization.

16346645605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13565927.

The product of its (nonzero) digits is 1555200, while the sum is 46.

The spelling of 16346645605 in words is "sixteen billion, three hundred forty-six million, six hundred forty-five thousand, six hundred five".