16398340061 has 8 divisors (see below), whose sum is σ = 17144167104. Its totient is φ = 15655251040.

The previous prime is 16398340043. The next prime is 16398340093. The reversal of 16398340061 is 16004389361.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16398340061 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 (16398340031) 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, 672251 + ... + 696216.

It is an arithmetic number, because the mean of its divisors is an integer number (2143020888).

Almost surely, 2^16398340061 is an apocalyptic number.

It is an amenable number.

16398340061 is a deficient number, since it is larger than the sum of its proper divisors (745827043).

16398340061 is a wasteful number, since it uses less digits than its factorization.

16398340061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369011.

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 16398340061 in words is "sixteen billion, three hundred ninety-eight million, three hundred forty thousand, sixty-one".