161768968 has 16 divisors (see below), whose sum is σ = 304238160. Its totient is φ = 80638800.

The previous prime is 161768963. The next prime is 161768969. The reversal of 161768968 is 869867161.

It is a happy number.

161768968 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (161768963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27898 + ... + 33193.

It is an arithmetic number, because the mean of its divisors is an integer number (19014885).

Almost surely, 2^161768968 is an apocalyptic number.

It is an amenable number.

161768968 is a deficient number, since it is larger than the sum of its proper divisors (142469192).

161768968 is a wasteful number, since it uses less digits than its factorization.

161768968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61428 (or 61424 counting only the distinct ones).

The product of its digits is 870912, while the sum is 52.

The square root of 161768968 is about 12718.8430291438. The cubic root of 161768968 is about 544.8769107315.

It can be divided in two parts, 161 and 768968, that added together give a square (769129 = 877²).

The spelling of 161768968 in words is "one hundred sixty-one million, seven hundred sixty-eight thousand, nine hundred sixty-eight".