16709148895561 has 8 divisors (see below), whose sum is σ = 16931277484704. Its totient is φ = 16488323113920.

The previous prime is 16709148895559. The next prime is 16709148895589. The reversal of 16709148895561 is 16559884190761.

16709148895561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16709148895561 - 2¹ = 16709148895559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16709148805561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325676055 + ... + 325727356.

It is an arithmetic number, because the mean of its divisors is an integer number (2116409685588).

Almost surely, 2^{16709148895561} is an apocalyptic number.

It is an amenable number.

16709148895561 is a deficient number, since it is larger than the sum of its proper divisors (222128589143).

16709148895561 is a wasteful number, since it uses less digits than its factorization.

16709148895561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651403751.

The product of its (nonzero) digits is 130636800, while the sum is 70.

The spelling of 16709148895561 in words is "sixteen trillion, seven hundred nine billion, one hundred forty-eight million, eight hundred ninety-five thousand, five hundred sixty-one".