161562504514 has 32 divisors (see below), whose sum is σ = 262008898560. Its totient is φ = 74498318400.

The previous prime is 161562504487. The next prime is 161562504553. The reversal of 161562504514 is 415405265161.

It is a super-2 number, since 2×161562504514² (a number of 23 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 173004 + ... + 594184.

It is an arithmetic number, because the mean of its divisors is an integer number (8187778080).

Almost surely, 2^161562504514 is an apocalyptic number.

161562504514 is a deficient number, since it is larger than the sum of its proper divisors (100446394046).

161562504514 is a wasteful number, since it uses less digits than its factorization.

161562504514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421506.

The product of its (nonzero) digits is 144000, while the sum is 40.

Adding to 161562504514 its reverse (415405265161), we get a palindrome (576967769675).

The spelling of 161562504514 in words is "one hundred sixty-one billion, five hundred sixty-two million, five hundred four thousand, five hundred fourteen".