161876288 has 56 divisors (see below), whose sum is σ = 372660672. Its totient is φ = 68327424.

The previous prime is 161876287. The next prime is 161876291. The reversal of 161876288 is 882678161.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161876287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27320 + ... + 32712.

Almost surely, 2^161876288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161876288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186330336).

161876288 is an abundant number, since it is smaller than the sum of its proper divisors (210784384).

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

161876288 is an equidigital number, since it uses as much as digits as its factorization.

161876288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5479 (or 5469 counting only the distinct ones).

The product of its digits is 258048, while the sum is 47.

The square root of 161876288 is about 12723.0612668493. The cubic root of 161876288 is about 544.9973773125.

The spelling of 161876288 in words is "one hundred sixty-one million, eight hundred seventy-six thousand, two hundred eighty-eight".