161029960 has 192 divisors, whose sum is σ = 464849280. Its totient is φ = 49121280.

The previous prime is 161029931. The next prime is 161029961. The reversal of 161029960 is 69920161.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161029961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1940079 + ... + 1940161.

It is an arithmetic number, because the mean of its divisors is an integer number (2421090).

Almost surely, 2^161029960 is an apocalyptic number.

161029960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161029960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232424640).

161029960 is an abundant number, since it is smaller than the sum of its proper divisors (303819320).

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

161029960 is a wasteful number, since it uses less digits than its factorization.

161029960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 161029960 is about 12689.7580749201. The cubic root of 161029960 is about 544.0459249723.

It can be divided in two parts, 16102 and 9960, that added together give a palindrome (26062).

The spelling of 161029960 in words is "one hundred sixty-one million, twenty-nine thousand, nine hundred sixty".