120330821686 has 16 divisors (see below), whose sum is σ = 188178615504. Its totient is φ = 57657416544.

The previous prime is 120330821683. The next prime is 120330821687. The reversal of 120330821686 is 686128033021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120330821683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13195401 + ... + 13204516.

It is an arithmetic number, because the mean of its divisors is an integer number (11761163469).

Almost surely, 2^120330821686 is an apocalyptic number.

120330821686 is a deficient number, since it is larger than the sum of its proper divisors (67847793818).

120330821686 is a wasteful number, since it uses less digits than its factorization.

120330821686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26400015.

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 120330821686 in words is "one hundred twenty billion, three hundred thirty million, eight hundred twenty-one thousand, six hundred eighty-six".