820808060402 has 64 divisors (see below), whose sum is σ = 1415162707200. Its totient is φ = 353407380480.

The previous prime is 820808060363. The next prime is 820808060441. The reversal of 820808060402 is 204060808028.

It is an interprime number because it is at equal distance from previous prime (820808060363) and next prime (820808060441).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157572374 + ... + 157577582.

It is an arithmetic number, because the mean of its divisors is an integer number (22111917300).

Almost surely, 2^820808060402 is an apocalyptic number.

820808060402 is a deficient number, since it is larger than the sum of its proper divisors (594354646798).

820808060402 is a wasteful number, since it uses less digits than its factorization.

820808060402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8211.

The product of its (nonzero) digits is 49152, while the sum is 38.

The spelling of 820808060402 in words is "eight hundred twenty billion, eight hundred eight million, sixty thousand, four hundred two".