6600040666242 has 32 divisors (see below), whose sum is σ = 13786617268800. Its totient is φ = 2104273153728.

The previous prime is 6600040666237. The next prime is 6600040666273. The reversal of 6600040666242 is 2426660400066.

It is a junction number, because it is equal to n+sod(n) for n = 6600040666194 and 6600040666203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251935317 + ... + 251961512.

It is an arithmetic number, because the mean of its divisors is an integer number (430831789650).

Almost surely, 2^{6600040666242} is an apocalyptic number.

6600040666242 is an abundant number, since it is smaller than the sum of its proper divisors (7186576602558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6600040666242 is a wasteful number, since it uses less digits than its factorization.

6600040666242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503896930.

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 6600040666242 in words is "six trillion, six hundred billion, forty million, six hundred sixty-six thousand, two hundred forty-two".