161362162057 has 8 divisors (see below), whose sum is σ = 161660109600. Its totient is φ = 161064376704.

The previous prime is 161362162051. The next prime is 161362162111. The reversal of 161362162057 is 750261263161.

161362162057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161362162057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161362162051) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2049738 + ... + 2127004.

It is an arithmetic number, because the mean of its divisors is an integer number (20207513700).

Almost surely, 2^161362162057 is an apocalyptic number.

It is an amenable number.

161362162057 is a deficient number, since it is larger than the sum of its proper divisors (297947543).

161362162057 is an equidigital number, since it uses as much as digits as its factorization.

161362162057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81095.

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

The spelling of 161362162057 in words is "one hundred sixty-one billion, three hundred sixty-two million, one hundred sixty-two thousand, fifty-seven".