124040666040421 has 24 divisors (see below), whose sum is σ = 137306050352640. Its totient is φ = 111955061814336.

The previous prime is 124040666040419. The next prime is 124040666040461.

124040666040421 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 124040666040421 - 2¹ = 124040666040419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124040666040461) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 737691 + ... + 15767863.

It is an arithmetic number, because the mean of its divisors is an integer number (5721085431360).

Almost surely, 2^{124040666040421} is an apocalyptic number.

It is an amenable number.

124040666040421 is a deficient number, since it is larger than the sum of its proper divisors (13265384312219).

124040666040421 is a wasteful number, since it uses less digits than its factorization.

124040666040421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15031285 (or 15031272 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 124040666040421 in words is "one hundred twenty-four trillion, forty billion, six hundred sixty-six million, forty thousand, four hundred twenty-one".