16645200741751 has 4 divisors (see below), whose sum is σ = 16646785858504. Its totient is φ = 16643615625000.

The previous prime is 16645200741683. The next prime is 16645200741761. The reversal of 16645200741751 is 15714700254661.

16645200741751 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 16645200741751 - 2²³ = 16645192353143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16645200741695 and 16645200741704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16645200741761) 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, 792542625 + ... + 792563626.

It is an arithmetic number, because the mean of its divisors is an integer number (4161696464626).

Almost surely, 2^{16645200741751} is an apocalyptic number.

16645200741751 is a deficient number, since it is larger than the sum of its proper divisors (1585116753).

16645200741751 is a wasteful number, since it uses less digits than its factorization.

16645200741751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585116752.

The product of its (nonzero) digits is 1411200, while the sum is 49.

The spelling of 16645200741751 in words is "sixteen trillion, six hundred forty-five billion, two hundred million, seven hundred forty-one thousand, seven hundred fifty-one".