2820161002 has 8 divisors (see below), whose sum is σ = 4230511812. Its totient is φ = 1409990400.

The previous prime is 2820160961. The next prime is 2820161011. The reversal of 2820161002 is 2001610282.

It can be written as a sum of positive squares in 2 ways, for example, as 2756145001 + 64016001 = 52499^2 + 8001^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5352 + ... + 75292.

Almost surely, 2^2820161002 is an apocalyptic number.

2820161002 is a deficient number, since it is larger than the sum of its proper divisors (1410350810).

2820161002 is a wasteful number, since it uses less digits than its factorization.

2820161002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90104.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 2820161002 is about 53105.1880893007. The cubic root of 2820161002 is about 1412.8345309613.

Adding to 2820161002 its reverse (2001610282), we get a palindrome (4821771284).

The spelling of 2820161002 in words is "two billion, eight hundred twenty million, one hundred sixty-one thousand, two".