231621366060055 has 16 divisors (see below), whose sum is σ = 282602911836384. Its totient is φ = 182194411927680.

The previous prime is 231621366059947. The next prime is 231621366060067. The reversal of 231621366060055 is 550060663126132.

It is not a de Polignac number, because 231621366060055 - 2¹⁵ = 231621366027287 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231621366059987 and 231621366060014.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 134609644 + ... + 136319473.

It is an arithmetic number, because the mean of its divisors is an integer number (17662681989774).

Almost surely, 2^{231621366060055} is an apocalyptic number.

231621366060055 is a deficient number, since it is larger than the sum of its proper divisors (50981545776329).

231621366060055 is a wasteful number, since it uses less digits than its factorization.

231621366060055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270931986.

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 231621366060055 in words is "two hundred thirty-one trillion, six hundred twenty-one billion, three hundred sixty-six million, sixty thousand, fifty-five".