16602354073 has 4 divisors (see below), whose sum is σ = 16686630180. Its totient is φ = 16518077968.

The previous prime is 16602354061. The next prime is 16602354077. The reversal of 16602354073 is 37045320661.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13635699984 + 2966654089 = 116772^2 + 54467^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16602354073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16602354077) 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, 42137758 + ... + 42138151.

It is an arithmetic number, because the mean of its divisors is an integer number (4171657545).

Almost surely, 2^16602354073 is an apocalyptic number.

It is an amenable number.

16602354073 is a deficient number, since it is larger than the sum of its proper divisors (84276107).

16602354073 is an equidigital number, since it uses as much as digits as its factorization.

16602354073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84276106.

The product of its (nonzero) digits is 90720, while the sum is 37.

The spelling of 16602354073 in words is "sixteen billion, six hundred two million, three hundred fifty-four thousand, seventy-three".