124651606401 has 20 divisors (see below), whose sum is σ = 212809092672. Its totient is φ = 71229489048.

The previous prime is 124651606367. The next prime is 124651606423. The reversal of 124651606401 is 104606156421.

124651606401 is a `hidden beast` number, since 1 + 2 + 4 + 6 + 5 + 1 + 6 + 0 + 640 + 1 = 666.

It is not a de Polignac number, because 124651606401 - 2¹⁹ = 124651082113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (124651606481) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 109921485 + ... + 109922618.

Almost surely, 2^124651606401 is an apocalyptic number.

It is an amenable number.

124651606401 is a deficient number, since it is larger than the sum of its proper divisors (88157486271).

124651606401 is an equidigital number, since it uses as much as digits as its factorization.

124651606401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219844122 (or 219844113 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 124651606401 in words is "one hundred twenty-four billion, six hundred fifty-one million, six hundred six thousand, four hundred one".