121672832065 has 8 divisors (see below), whose sum is σ = 146196287208. Its totient is φ = 97212339840.

The previous prime is 121672832027. The next prime is 121672832081. The reversal of 121672832065 is 560238276121.

It can be written as a sum of positive squares in 4 ways, for example, as 1383170481 + 120289661584 = 37191^2 + 346828^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121672832065 - 2⁷ = 121672831937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15736476 + ... + 15744205.

It is an arithmetic number, because the mean of its divisors is an integer number (18274535901).

Almost surely, 2^121672832065 is an apocalyptic number.

It is an amenable number.

121672832065 is a deficient number, since it is larger than the sum of its proper divisors (24523455143).

121672832065 is an equidigital number, since it uses as much as digits as its factorization.

121672832065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31481459.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 121672832065 in words is "one hundred twenty-one billion, six hundred seventy-two million, eight hundred thirty-two thousand, sixty-five".