66624040246 has 16 divisors (see below), whose sum is σ = 109769587200. Its totient is φ = 30186635688.

The previous prime is 66624040229. The next prime is 66624040297. The reversal of 66624040246 is 64204042666.

66624040246 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 66624040199 and 66624040208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38113566 + ... + 38115313.

It is an arithmetic number, because the mean of its divisors is an integer number (6860599200).

Almost surely, 2^66624040246 is an apocalyptic number.

66624040246 is a deficient number, since it is larger than the sum of its proper divisors (43145546954).

66624040246 is a wasteful number, since it uses less digits than its factorization.

66624040246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76228923.

The product of its (nonzero) digits is 331776, while the sum is 40.

The spelling of 66624040246 in words is "sixty-six billion, six hundred twenty-four million, forty thousand, two hundred forty-six".