161517606430 has 32 divisors (see below), whose sum is σ = 291179629440. Its totient is φ = 64507581600.

The previous prime is 161517606413. The next prime is 161517606451. The reversal of 161517606430 is 34606715161.

161517606430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23822781 + ... + 23829559.

It is an arithmetic number, because the mean of its divisors is an integer number (9099363420).

Almost surely, 2^161517606430 is an apocalyptic number.

161517606430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161517606430 is a deficient number, since it is larger than the sum of its proper divisors (129662023010).

161517606430 is a wasteful number, since it uses less digits than its factorization.

161517606430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10104.

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 161517606430 in words is "one hundred sixty-one billion, five hundred seventeen million, six hundred six thousand, four hundred thirty".