163021642002 has 54 divisors (see below), whose sum is σ = 359524588917. Its totient is φ = 53386402992.

The previous prime is 163021641997. The next prime is 163021642073. The reversal of 163021642002 is 200246120361.

163021642002 is a `hidden beast` number, since 1 + 630 + 2 + 1 + 6 + 4 + 20 + 0 + 2 = 666.

163021642002 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 2 ways, for example, as 160441103601 + 2580538401 = 400551^2 + 50799^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=285501.

It is a super-2 number, since 2×163021642002² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 101066548 + ... + 101068160.

Almost surely, 2^163021642002 is an apocalyptic number.

163021642002 is an abundant number, since it is smaller than the sum of its proper divisors (196502946915).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163021642002 is an frugal number, since it uses more digits than its factorization.

163021642002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3352 (or 1677 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 163021642002 its reverse (200246120361), we get a palindrome (363267762363).

The spelling of 163021642002 in words is "one hundred sixty-three billion, twenty-one million, six hundred forty-two thousand, two".