161515076105 has 24 divisors (see below), whose sum is σ = 196330723200. Its totient is φ = 127557128160.

The previous prime is 161515076089. The next prime is 161515076111. The reversal of 161515076105 is 501670515161.

It is not a de Polignac number, because 161515076105 - 2⁴ = 161515076089 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 17553296 + ... + 17562494.

It is an arithmetic number, because the mean of its divisors is an integer number (8180446800).

Almost surely, 2^161515076105 is an apocalyptic number.

It is an amenable number.

161515076105 is a deficient number, since it is larger than the sum of its proper divisors (34815647095).

161515076105 is an equidigital number, since it uses as much as digits as its factorization.

161515076105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9741 (or 9638 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 38.

The spelling of 161515076105 in words is "one hundred sixty-one billion, five hundred fifteen million, seventy-six thousand, one hundred five".