161534332546 has 8 divisors (see below), whose sum is σ = 242308604160. Its totient is φ = 80764797828.

The previous prime is 161534332541. The next prime is 161534332549. The reversal of 161534332546 is 645233435161.

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

It is not an unprimeable number, because it can be changed into a prime (161534332541) 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, 1097706 + ... + 1236133.

It is an arithmetic number, because the mean of its divisors is an integer number (30288575520).

Almost surely, 2^161534332546 is an apocalyptic number.

161534332546 is a deficient number, since it is larger than the sum of its proper divisors (80774271614).

161534332546 is a wasteful number, since it uses less digits than its factorization.

161534332546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368448.

The product of its digits is 777600, while the sum is 43.

The spelling of 161534332546 in words is "one hundred sixty-one billion, five hundred thirty-four million, three hundred thirty-two thousand, five hundred forty-six".