161080782 has 8 divisors (see below), whose sum is σ = 322161576. Its totient is φ = 53693592.

The previous prime is 161080781. The next prime is 161080811. The reversal of 161080782 is 287080161.

It is a happy number.

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

161080782 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161080781) 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, 13423393 + ... + 13423404.

It is an arithmetic number, because the mean of its divisors is an integer number (40270197).

Almost surely, 2^161080782 is an apocalyptic number.

161080782 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.

161080782 is a wasteful number, since it uses less digits than its factorization.

161080782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26846802.

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 161080782 is about 12691.7603979905. The cubic root of 161080782 is about 544.1031536473.

The spelling of 161080782 in words is "one hundred sixty-one million, eighty thousand, seven hundred eighty-two".