161160389961 has 8 divisors (see below), whose sum is σ = 214882622304. Its totient is φ = 107439208800.

The previous prime is 161160389959. The next prime is 161160389977. The reversal of 161160389961 is 169983061161.

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

It is not a de Polignac number, because 161160389961 - 2¹ = 161160389959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161160389921) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 223486 + ... + 610136.

It is an arithmetic number, because the mean of its divisors is an integer number (26860327788).

Almost surely, 2^161160389961 is an apocalyptic number.

It is an amenable number.

161160389961 is a deficient number, since it is larger than the sum of its proper divisors (53722232343).

161160389961 is a wasteful number, since it uses less digits than its factorization.

161160389961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525591.

The product of its (nonzero) digits is 419904, while the sum is 51.

The spelling of 161160389961 in words is "one hundred sixty-one billion, one hundred sixty million, three hundred eighty-nine thousand, nine hundred sixty-one".