161301574492 has 24 divisors (see below), whose sum is σ = 285894367920. Its totient is φ = 79622073600.

The previous prime is 161301574417. The next prime is 161301574493. The reversal of 161301574492 is 294475103161.

It is a happy number.

161301574492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161301574493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435117 + ... + 715492.

It is an arithmetic number, because the mean of its divisors is an integer number (11912265330).

Almost surely, 2^161301574492 is an apocalyptic number.

It is an amenable number.

161301574492 is a deficient number, since it is larger than the sum of its proper divisors (124592793428).

161301574492 is a wasteful number, since it uses less digits than its factorization.

161301574492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151061 (or 1151059 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 161301574492 in words is "one hundred sixty-one billion, three hundred one million, five hundred seventy-four thousand, four hundred ninety-two".