20161002 has 8 divisors (see below), whose sum is σ = 40322016. Its totient is φ = 6720332.

The previous prime is 20160961. The next prime is 20161007. The reversal of 20161002 is 20016102.

It is a sphenic number, since it is the product of 3 distinct primes.

20161002 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20161007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1680078 + ... + 1680089.

It is an arithmetic number, because the mean of its divisors is an integer number (5040252).

Almost surely, 2^20161002 is an apocalyptic number.

20161002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20161002 is a wasteful number, since it uses less digits than its factorization.

20161002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3360172.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 20161002 is about 4490.1004443108. The cubic root of 20161002 is about 272.1681936245.

Adding to 20161002 its reverse (20016102), we get a palindrome (40177104).

It can be divided in two parts, 2016100 and 2, that added together give a palindrome (2016102).

The spelling of 20161002 in words is "twenty million, one hundred sixty-one thousand, two".