161354530015 has 32 divisors (see below), whose sum is σ = 233436395520. Its totient is φ = 104593192704.

The previous prime is 161354530013. The next prime is 161354530039. The reversal of 161354530015 is 510035453161.

It is not a de Polignac number, because 161354530015 - 2¹ = 161354530013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161354530013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45867 + ... + 569923.

It is an arithmetic number, because the mean of its divisors is an integer number (7294887360).

Almost surely, 2^161354530015 is an apocalyptic number.

161354530015 is a deficient number, since it is larger than the sum of its proper divisors (72081865505).

161354530015 is a wasteful number, since it uses less digits than its factorization.

161354530015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524551.

The product of its (nonzero) digits is 27000, while the sum is 34.

Adding to 161354530015 its reverse (510035453161), we get a palindrome (671389983176).

The spelling of 161354530015 in words is "one hundred sixty-one billion, three hundred fifty-four million, five hundred thirty thousand, fifteen".