16716583915201 has 4 divisors (see below), whose sum is σ = 16778727350100. Its totient is φ = 16654440480304.

The previous prime is 16716583915177. The next prime is 16716583915211. The reversal of 16716583915201 is 10251938561761.

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 5232889577601 + 11483694337600 = 2287551^2 + 3388760^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16716583915201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16716583915211) 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, 31071717046 + ... + 31071717583.

It is an arithmetic number, because the mean of its divisors is an integer number (4194681837525).

Almost surely, 2^{16716583915201} is an apocalyptic number.

It is an amenable number.

16716583915201 is a deficient number, since it is larger than the sum of its proper divisors (62143434899).

16716583915201 is an equidigital number, since it uses as much as digits as its factorization.

16716583915201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62143434898.

The product of its (nonzero) digits is 2721600, while the sum is 55.

The spelling of 16716583915201 in words is "sixteen trillion, seven hundred sixteen billion, five hundred eighty-three million, nine hundred fifteen thousand, two hundred one".