16645140335 has 8 divisors (see below), whose sum is σ = 19977001440. Its totient is φ = 13314223584.

The previous prime is 16645140277. The next prime is 16645140349. The reversal of 16645140335 is 53304154661.

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

It is a cyclic number.

It is not a de Polignac number, because 16645140335 - 2²² = 16640946031 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196712 + ... + 268301.

It is an arithmetic number, because the mean of its divisors is an integer number (2497125180).

Almost surely, 2^16645140335 is an apocalyptic number.

16645140335 is a deficient number, since it is larger than the sum of its proper divisors (3331861105).

16645140335 is an equidigital number, since it uses as much as digits as its factorization.

16645140335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472177.

The product of its (nonzero) digits is 129600, while the sum is 38.

Adding to 16645140335 its reverse (53304154661), we get a palindrome (69949294996).

The spelling of 16645140335 in words is "sixteen billion, six hundred forty-five million, one hundred forty thousand, three hundred thirty-five".