16002004645 has 32 divisors (see below), whose sum is σ = 21531121920. Its totient is φ = 11318208000.

The previous prime is 16002004633. The next prime is 16002004853. The reversal of 16002004645 is 54640020061.

It is not a de Polignac number, because 16002004645 - 2³¹ = 13854520997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 271800 + ... + 325390.

It is an arithmetic number, because the mean of its divisors is an integer number (672847560).

Almost surely, 2^16002004645 is an apocalyptic number.

It is an amenable number.

16002004645 is a deficient number, since it is larger than the sum of its proper divisors (5529117275).

16002004645 is a wasteful number, since it uses less digits than its factorization.

16002004645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53757.

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 16002004645 in words is "sixteen billion, two million, four thousand, six hundred forty-five".