161301574534 has 8 divisors (see below), whose sum is σ = 242309752848. Its totient is φ = 80531656920.

The previous prime is 161301574493. The next prime is 161301574537. The reversal of 161301574534 is 435475103161.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161301574537) 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, 59563482 + ... + 59566189.

It is an arithmetic number, because the mean of its divisors is an integer number (30288719106).

Almost surely, 2^161301574534 is an apocalyptic number.

161301574534 is a deficient number, since it is larger than the sum of its proper divisors (81008178314).

161301574534 is a wasteful number, since it uses less digits than its factorization.

161301574534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119130350.

The product of its (nonzero) digits is 151200, while the sum is 40.

Adding to 161301574534 its reverse (435475103161), we get a palindrome (596776677695).

The spelling of 161301574534 in words is "one hundred sixty-one billion, three hundred one million, five hundred seventy-four thousand, five hundred thirty-four".