820066740682 has 16 divisors (see below), whose sum is σ = 1406987695872. Its totient is φ = 351167425200.

The previous prime is 820066740679. The next prime is 820066740683. The reversal of 820066740682 is 286047660028.

It is not an unprimeable number, because it can be changed into a prime (820066740683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24128194 + ... + 24162157.

It is an arithmetic number, because the mean of its divisors is an integer number (87936730992).

Almost surely, 2^820066740682 is an apocalyptic number.

820066740682 is a deficient number, since it is larger than the sum of its proper divisors (586920955190).

820066740682 is a wasteful number, since it uses less digits than its factorization.

820066740682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48291573.

The product of its (nonzero) digits is 1548288, while the sum is 49.

The spelling of 820066740682 in words is "eight hundred twenty billion, sixty-six million, seven hundred forty thousand, six hundred eighty-two".