820063145132 has 24 divisors (see below), whose sum is σ = 1789228680960. Its totient is φ = 319505121360.

The previous prime is 820063145051. The next prime is 820063145141. The reversal of 820063145132 is 231541360028.

It is a junction number, because it is equal to n+sod(n) for n = 820063145092 and 820063145101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1331271032 + ... + 1331271647.

It is an arithmetic number, because the mean of its divisors is an integer number (74551195040).

Almost surely, 2^820063145132 is an apocalyptic number.

It is an amenable number.

820063145132 is an abundant number, since it is smaller than the sum of its proper divisors (969165535828).

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

820063145132 is a wasteful number, since it uses less digits than its factorization.

820063145132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662542701 (or 2662542699 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 820063145132 in words is "eight hundred twenty billion, sixty-three million, one hundred forty-five thousand, one hundred thirty-two".