161485064583023 has 4 divisors (see below), whose sum is σ = 161891827970280. Its totient is φ = 161078301195768.

The previous prime is 161485064583013. The next prime is 161485064583049. The reversal of 161485064583023 is 320385460584161.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 161485064583023 - 2¹² = 161485064578927 is a prime.

It is a super-3 number, since 3×161485064583023³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161485064583023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161485064583013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203381693033 + ... + 203381693826.

It is an arithmetic number, because the mean of its divisors is an integer number (40472956992570).

Almost surely, 2^{161485064583023} is an apocalyptic number.

161485064583023 is a deficient number, since it is larger than the sum of its proper divisors (406763387257).

161485064583023 is an equidigital number, since it uses as much as digits as its factorization.

161485064583023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406763387256.

The product of its (nonzero) digits is 16588800, while the sum is 56.

The spelling of 161485064583023 in words is "one hundred sixty-one trillion, four hundred eighty-five billion, sixty-four million, five hundred eighty-three thousand, twenty-three".