120838115669 has 16 divisors (see below), whose sum is σ = 123120569520. Its totient is φ = 118573424640.

The previous prime is 120838115647. The next prime is 120838115681. The reversal of 120838115669 is 966511838021.

It can be written as a sum of positive squares in 8 ways, for example, as 34266822769 + 86571292900 = 185113^2 + 294230^2 .

It is a cyclic number.

It is not a de Polignac number, because 120838115669 - 2¹⁶ = 120838050133 is a prime.

It is a super-2 number, since 2×120838115669² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120838115609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39734789 + ... + 39737829.

It is an arithmetic number, because the mean of its divisors is an integer number (7695035595).

Almost surely, 2^120838115669 is an apocalyptic number.

It is an amenable number.

120838115669 is a deficient number, since it is larger than the sum of its proper divisors (2282453851).

120838115669 is a wasteful number, since it uses less digits than its factorization.

120838115669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5720.

The product of its (nonzero) digits is 622080, while the sum is 50.

The spelling of 120838115669 in words is "one hundred twenty billion, eight hundred thirty-eight million, one hundred fifteen thousand, six hundred sixty-nine".