3538608692161 has 3 divisors (see below), whose sum is σ = 3538610573281. Its totient is φ = 3538606811042.

The previous prime is 3538608692153. The next prime is 3538608692191. The reversal of 3538608692161 is 1612968068353.

The square root of 3538608692161 is 1881119.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 3538608692161 - 2³ = 3538608692153 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3538608692096 and 3538608692105.

It is not an unprimeable number, because it can be changed into a prime (3538608692191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 940560 + ... + 2821678.

Almost surely, 2^{3538608692161} is an apocalyptic number.

3538608692161 is the 1881119-th square number.

3538608692161 is the 940560-th centered octagonal number.

It is an amenable number.

3538608692161 is a deficient number, since it is larger than the sum of its proper divisors (1881120).

3538608692161 is an frugal number, since it uses more digits than its factorization.

3538608692161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3762238 (or 1881119 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 58.

The spelling of 3538608692161 in words is "three trillion, five hundred thirty-eight billion, six hundred eight million, six hundred ninety-two thousand, one hundred sixty-one".