161089414064 has 40 divisors (see below), whose sum is σ = 325807167840. Its totient is φ = 77012863488.

The previous prime is 161089414021. The next prime is 161089414081. The reversal of 161089414064 is 460414980161.

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 7 ways as a sum of consecutive naturals, for example, 879422 + ... + 1046690.

It is an arithmetic number, because the mean of its divisors is an integer number (8145179196).

Almost surely, 2^161089414064 is an apocalyptic number.

It is an amenable number.

161089414064 is an abundant number, since it is smaller than the sum of its proper divisors (164717753776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161089414064 is a wasteful number, since it uses less digits than its factorization.

161089414064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169917 (or 169911 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 161089414064 in words is "one hundred sixty-one billion, eighty-nine million, four hundred fourteen thousand, sixty-four".