162988650721 has 8 divisors (see below), whose sum is σ = 175529914280. Its totient is φ = 150447912192.

The previous prime is 162988650707. The next prime is 162988650731. The reversal of 162988650721 is 127056889261.

It is a happy number.

162988650721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9779034321 + 153209616400 = 98889^2 + 391420^2 .

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 162988650721 - 2¹³ = 162988642529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162988650701) 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, 716185 + ... + 915913.

It is an arithmetic number, because the mean of its divisors is an integer number (21941239285).

Almost surely, 2^162988650721 is an apocalyptic number.

It is an amenable number.

162988650721 is a deficient number, since it is larger than the sum of its proper divisors (12541263559).

162988650721 is a wasteful number, since it uses less digits than its factorization.

162988650721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262515.

The product of its (nonzero) digits is 2903040, while the sum is 55.

The spelling of 162988650721 in words is "one hundred sixty-two billion, nine hundred eighty-eight million, six hundred fifty thousand, seven hundred twenty-one".