124658161856421 has 16 divisors (see below), whose sum is σ = 171833552408448. Its totient is φ = 80323855848000.

The previous prime is 124658161856419. The next prime is 124658161856429.

124658161856421 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 124658161856421 - 2¹ = 124658161856419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124658161856429) 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, 3718680270 + ... + 3718713791.

It is an arithmetic number, because the mean of its divisors is an integer number (10739597025528).

Almost surely, 2^{124658161856421} is an apocalyptic number.

It is an amenable number.

124658161856421 is a deficient number, since it is larger than the sum of its proper divisors (47175390552027).

124658161856421 is a wasteful number, since it uses less digits than its factorization.

124658161856421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7437394252.

The product of its digits is 22118400, while the sum is 60.

The spelling of 124658161856421 in words is "one hundred twenty-four trillion, six hundred fifty-eight billion, one hundred sixty-one million, eight hundred fifty-six thousand, four hundred twenty-one".