124503614661 has 4 divisors (see below), whose sum is σ = 166004819552. Its totient is φ = 83002409772.

The previous prime is 124503614617. The next prime is 124503614687. The reversal of 124503614661 is 166416305421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 166416305421 = 3 ⋅55472101807.

It is not a de Polignac number, because 124503614661 - 2¹⁴ = 124503598277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124503614611) 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 3 ways as a sum of consecutive naturals, for example, 20750602441 + ... + 20750602446.

It is an arithmetic number, because the mean of its divisors is an integer number (41501204888).

Almost surely, 2^124503614661 is an apocalyptic number.

It is an amenable number.

124503614661 is a deficient number, since it is larger than the sum of its proper divisors (41501204891).

124503614661 is an equidigital number, since it uses as much as digits as its factorization.

124503614661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41501204890.

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 124503614661 in words is "one hundred twenty-four billion, five hundred three million, six hundred fourteen thousand, six hundred sixty-one".