124666666421 has 16 divisors (see below), whose sum is σ = 136469857920. Its totient is φ = 112942399680.

The previous prime is 124666666393. The next prime is 124666666427.

124666666421 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 124666666421 - 2¹⁰ = 124666665397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 124666666421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124666666427) 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, 4220315 + ... + 4249751.

It is an arithmetic number, because the mean of its divisors is an integer number (8529366120).

Almost surely, 2^124666666421 is an apocalyptic number.

124666666421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

124666666421 is a deficient number, since it is larger than the sum of its proper divisors (11803191499).

124666666421 is a wasteful number, since it uses less digits than its factorization.

124666666421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30764.

The product of its digits is 2985984, while the sum is 50.

The spelling of 124666666421 in words is "one hundred twenty-four billion, six hundred sixty-six million, six hundred sixty-six thousand, four hundred twenty-one".