3635416005161 has 4 divisors (see below), whose sum is σ = 3643512700500. Its totient is φ = 3627319309824.

The previous prime is 3635416005077. The next prime is 3635416005181. The reversal of 3635416005161 is 1615006145363.

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 2455300963600 + 1180115041561 = 1566940^2 + 1086331^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3635416005161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3635416005181) 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, 4048346996 + ... + 4048347893.

It is an arithmetic number, because the mean of its divisors is an integer number (910878175125).

Almost surely, 2^{3635416005161} is an apocalyptic number.

It is an amenable number.

3635416005161 is a deficient number, since it is larger than the sum of its proper divisors (8096695339).

3635416005161 is an equidigital number, since it uses as much as digits as its factorization.

3635416005161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8096695338.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 3635416005161 in words is "three trillion, six hundred thirty-five billion, four hundred sixteen million, five thousand, one hundred sixty-one".