161605600025429 has 8 divisors (see below), whose sum is σ = 187029989180160. Its totient is φ = 136765679587056.

The previous prime is 161605600025423. The next prime is 161605600025449. The reversal of 161605600025429 is 924520006506161.

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

It is a cyclic number.

It is not a de Polignac number, because 161605600025429 - 2⁸ = 161605600025173 is a prime.

It is a super-2 number, since 2×161605600025429² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161605600025423) 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, 146117178494 + ... + 146117179599.

It is an arithmetic number, because the mean of its divisors is an integer number (23378748647520).

Almost surely, 2^{161605600025429} is an apocalyptic number.

It is an amenable number.

161605600025429 is a deficient number, since it is larger than the sum of its proper divisors (25424389154731).

161605600025429 is an equidigital number, since it uses as much as digits as its factorization.

161605600025429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292234358179.

The product of its (nonzero) digits is 777600, while the sum is 47.

The spelling of 161605600025429 in words is "one hundred sixty-one trillion, six hundred five billion, six hundred million, twenty-five thousand, four hundred twenty-nine".