161716752 has 60 divisors (see below), whose sum is σ = 476410480. Its totient is φ = 51067584.

The previous prime is 161716741. The next prime is 161716781. The reversal of 161716752 is 257617161.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26818 + ... + 32289.

Almost surely, 2^161716752 is an apocalyptic number.

161716752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161716752 is an abundant number, since it is smaller than the sum of its proper divisors (314693728).

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

161716752 is a wasteful number, since it uses less digits than its factorization.

161716752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59140 (or 59131 counting only the distinct ones).

The product of its digits is 17640, while the sum is 36.

The square root of 161716752 is about 12716.7901610430. The cubic root of 161716752 is about 544.8182790609.

The spelling of 161716752 in words is "one hundred sixty-one million, seven hundred sixteen thousand, seven hundred fifty-two".