161064894 has 8 divisors (see below), whose sum is σ = 322129800. Its totient is φ = 53688296.

The previous prime is 161064877. The next prime is 161064913. The reversal of 161064894 is 498460161.

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

161064894 is an admirable number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 13422069 + ... + 13422080.

It is an arithmetic number, because the mean of its divisors is an integer number (40266225).

Almost surely, 2^161064894 is an apocalyptic number.

161064894 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

161064894 is a wasteful number, since it uses less digits than its factorization.

161064894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26844154.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 161064894 is about 12691.1344646568. The cubic root of 161064894 is about 544.0852640828.

The spelling of 161064894 in words is "one hundred sixty-one million, sixty-four thousand, eight hundred ninety-four".