161751480576 has 432 divisors, whose sum is σ = 525639356928. Its totient is φ = 43971379200.

The previous prime is 161751480563. The next prime is 161751480623. The reversal of 161751480576 is 675084157161.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71160976 + ... + 71163248.

Almost surely, 2^161751480576 is an apocalyptic number.

161751480576 is a gapful number since it is divisible by the number (16) 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 161751480576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262819678464).

161751480576 is an abundant number, since it is smaller than the sum of its proper divisors (363887876352).

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

161751480576 is a wasteful number, since it uses less digits than its factorization.

161751480576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2398 (or 2377 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 51.

The spelling of 161751480576 in words is "one hundred sixty-one billion, seven hundred fifty-one million, four hundred eighty thousand, five hundred seventy-six".