16320606635 has 4 divisors (see below), whose sum is σ = 19584727968. Its totient is φ = 13056485304.

The previous prime is 16320606571. The next prime is 16320606637. The reversal of 16320606635 is 53660602361.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16320606635 - 2⁶ = 16320606571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16320606637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1632060659 + ... + 1632060668.

It is an arithmetic number, because the mean of its divisors is an integer number (4896181992).

Almost surely, 2^16320606635 is an apocalyptic number.

16320606635 is a deficient number, since it is larger than the sum of its proper divisors (3264121333).

16320606635 is an equidigital number, since it uses as much as digits as its factorization.

16320606635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3264121332.

The product of its (nonzero) digits is 116640, while the sum is 38.

The spelling of 16320606635 in words is "sixteen billion, three hundred twenty million, six hundred six thousand, six hundred thirty-five".