162573185113021 has 8 divisors (see below), whose sum is σ = 168179308597080. Its totient is φ = 156967071734592.

The previous prime is 162573185112991. The next prime is 162573185113153. The reversal of 162573185113021 is 120311581375261.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 60231413592100 + 102341771520921 = 7760890^2 + 10116411^2 .

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 162573185113021 - 2⁹ = 162573185112509 is a prime.

It is a pancake number, because a pancake can be divided into 162573185113021 parts by 18031815 straight cuts.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162573185113321) 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, 46003851 + ... + 49411543.

It is an arithmetic number, because the mean of its divisors is an integer number (21022413574635).

Almost surely, 2^{162573185113021} is an apocalyptic number.

162573185113021 is the 6815386-th nonagonal number.

It is an amenable number.

162573185113021 is a deficient number, since it is larger than the sum of its proper divisors (5606123484059).

162573185113021 is a wasteful number, since it uses less digits than its factorization.

162573185113021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5052815.

The product of its (nonzero) digits is 302400, while the sum is 46.

The spelling of 162573185113021 in words is "one hundred sixty-two trillion, five hundred seventy-three billion, one hundred eighty-five million, one hundred thirteen thousand, twenty-one".