161245042035133 has 8 divisors (see below), whose sum is σ = 184281609450368. Its totient is φ = 138208864972464.

The previous prime is 161245042035131. The next prime is 161245042035163. The reversal of 161245042035133 is 331530240542161.

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

It is a cyclic number.

It is not a de Polignac number, because 161245042035133 - 2¹ = 161245042035131 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161245042035131) 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, 96702441 + ... + 98355742.

It is an arithmetic number, because the mean of its divisors is an integer number (23035201181296).

Almost surely, 2^{161245042035133} is an apocalyptic number.

It is an amenable number.

161245042035133 is a deficient number, since it is larger than the sum of its proper divisors (23036567415235).

161245042035133 is a wasteful number, since it uses less digits than its factorization.

161245042035133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195176283.

The product of its (nonzero) digits is 259200, while the sum is 40.

Adding to 161245042035133 its reverse (331530240542161), we get a palindrome (492775282577294).

The spelling of 161245042035133 in words is "one hundred sixty-one trillion, two hundred forty-five billion, forty-two million, thirty-five thousand, one hundred thirty-three".