666048024642 has 256 divisors, whose sum is σ = 1805161881600. Its totient is φ = 158214850560.

The previous prime is 666048024617. The next prime is 666048024643. The reversal of 666048024642 is 246420840666.

It is a super-2 number, since 2×666048024642² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 666048024591 and 666048024600.

It is not an unprimeable number, because it can be changed into a prime (666048024643) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 413950734 + ... + 413952342.

It is an arithmetic number, because the mean of its divisors is an integer number (7051413600).

Almost surely, 2^666048024642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 666048024642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (902580940800).

666048024642 is an abundant number, since it is smaller than the sum of its proper divisors (1139113856958).

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

666048024642 is a wasteful number, since it uses less digits than its factorization.

666048024642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241.

The product of its (nonzero) digits is 2654208, while the sum is 48.

The spelling of 666048024642 in words is "six hundred sixty-six billion, forty-eight million, twenty-four thousand, six hundred forty-two".