161255015265333 has 48 divisors (see below), whose sum is σ = 242173953923328. Its totient is φ = 95315079129600.

The previous prime is 161255015265329. The next prime is 161255015265347. The reversal of 161255015265333 is 333562510552161.

161255015265333 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 161255015265333 - 2² = 161255015265329 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161255015265353) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43199241 + ... + 46783377.

It is an arithmetic number, because the mean of its divisors is an integer number (5045290706736).

Almost surely, 2^{161255015265333} is an apocalyptic number.

It is an amenable number.

161255015265333 is a deficient number, since it is larger than the sum of its proper divisors (80918938657995).

161255015265333 is a wasteful number, since it uses less digits than its factorization.

161255015265333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3587226 (or 3587215 counting only the distinct ones).

The product of its (nonzero) digits is 2430000, while the sum is 48.

The spelling of 161255015265333 in words is "one hundred sixty-one trillion, two hundred fifty-five billion, fifteen million, two hundred sixty-five thousand, three hundred thirty-three".