666145300004 has 48 divisors (see below), whose sum is σ = 1187808451200. Its totient is φ = 326829129216.

The previous prime is 666145300001. The next prime is 666145300021. The reversal of 666145300004 is 400003541666.

It is not an unprimeable number, because it can be changed into a prime (666145300001) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 82552082 + ... + 82560150.

It is an arithmetic number, because the mean of its divisors is an integer number (24746009400).

Almost surely, 2^666145300004 is an apocalyptic number.

It is an amenable number.

666145300004 is a deficient number, since it is larger than the sum of its proper divisors (521663151196).

666145300004 is a wasteful number, since it uses less digits than its factorization.

666145300004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9812 (or 9810 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 666145300004 in words is "six hundred sixty-six billion, one hundred forty-five million, three hundred thousand, four".