161098713215 has 32 divisors (see below), whose sum is σ = 223617775680. Its totient is φ = 110113024000.

The previous prime is 161098713211. The next prime is 161098713241. The reversal of 161098713215 is 512317890161.

161098713215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 161098713215 - 2² = 161098713211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161098713211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 532541 + ... + 778329.

It is an arithmetic number, because the mean of its divisors is an integer number (6988055490).

Almost surely, 2^161098713215 is an apocalyptic number.

161098713215 is a deficient number, since it is larger than the sum of its proper divisors (62519062465).

161098713215 is a wasteful number, since it uses less digits than its factorization.

161098713215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246523.

The product of its (nonzero) digits is 90720, while the sum is 44.

The spelling of 161098713215 in words is "one hundred sixty-one billion, ninety-eight million, seven hundred thirteen thousand, two hundred fifteen".