820020000202 has 8 divisors (see below), whose sum is σ = 1324647692676. Its totient is φ = 378470769312.

The previous prime is 820020000197. The next prime is 820020000211. The reversal of 820020000202 is 202000020028.

820020000202 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 766274387641 + 53745612561 = 875371^2 + 231831^2 .

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, 15769615363 + ... + 15769615414.

Almost surely, 2^820020000202 is an apocalyptic number.

820020000202 is a deficient number, since it is larger than the sum of its proper divisors (504627692474).

820020000202 is a wasteful number, since it uses less digits than its factorization.

820020000202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31539230792.

The product of its (nonzero) digits is 128, while the sum is 16.

The spelling of 820020000202 in words is "eight hundred twenty billion, twenty million, two hundred two", and thus it is an aban number.