162573685537 has 4 divisors (see below), whose sum is σ = 165641113620. Its totient is φ = 159506257456.

The previous prime is 162573685523. The next prime is 162573685559. The reversal of 162573685537 is 735586375261.

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

It can be written as a sum of positive squares in 2 ways, for example, as 124329580816 + 38244104721 = 352604^2 + 195561^2 .

It is a cyclic number.

It is not a de Polignac number, because 162573685537 - 2²⁷ = 162439467809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162573685517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1533713962 + ... + 1533714067.

It is an arithmetic number, because the mean of its divisors is an integer number (41410278405).

Almost surely, 2^162573685537 is an apocalyptic number.

It is an amenable number.

162573685537 is a deficient number, since it is larger than the sum of its proper divisors (3067428083).

162573685537 is an equidigital number, since it uses as much as digits as its factorization.

162573685537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3067428082.

The product of its digits is 31752000, while the sum is 58.

The spelling of 162573685537 in words is "one hundred sixty-two billion, five hundred seventy-three million, six hundred eighty-five thousand, five hundred thirty-seven".