124646821606 has 4 divisors (see below), whose sum is σ = 186970232412. Its totient is φ = 62323410802.

The previous prime is 124646821597. The next prime is 124646821679. The reversal of 124646821606 is 606128646421.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31161705400 + ... + 31161705403.

It is an arithmetic number, because the mean of its divisors is an integer number (46742558103).

Almost surely, 2^124646821606 is an apocalyptic number.

124646821606 is a deficient number, since it is larger than the sum of its proper divisors (62323410806).

124646821606 is an equidigital number, since it uses as much as digits as its factorization.

124646821606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62323410805.

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 124646821606 in words is "one hundred twenty-four billion, six hundred forty-six million, eight hundred twenty-one thousand, six hundred six".