161535413452 has 24 divisors (see below), whose sum is σ = 328367073440. Its totient is φ = 68094552960.

The previous prime is 161535413447. The next prime is 161535413509. The reversal of 161535413452 is 254314535161.

161535413452 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47286177 + ... + 47289592.

Almost surely, 2^161535413452 is an apocalyptic number.

It is an amenable number.

161535413452 is an abundant number, since it is smaller than the sum of its proper divisors (166831659988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161535413452 is a wasteful number, since it uses less digits than its factorization.

161535413452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94575841 (or 94575839 counting only the distinct ones).

The product of its digits is 216000, while the sum is 40.

The spelling of 161535413452 in words is "one hundred sixty-one billion, five hundred thirty-five million, four hundred thirteen thousand, four hundred fifty-two".