666707003370 has 24 divisors (see below), whose sum is σ = 1733438208996. Its totient is φ = 177788534208.

The previous prime is 666707003267. The next prime is 666707003371. The reversal of 666707003370 is 73300707666.

It can be written as a sum of positive squares in 2 ways, for example, as 647878498281 + 18828505089 = 804909^2 + 137217^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (666707003371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3703927707 + ... + 3703927886.

Almost surely, 2^666707003370 is an apocalyptic number.

666707003370 is an abundant number, since it is smaller than the sum of its proper divisors (1066731205626).

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

666707003370 is a wasteful number, since it uses less digits than its factorization.

666707003370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7407855606 (or 7407855603 counting only the distinct ones).

The product of its (nonzero) digits is 666792, while the sum is 45.

The spelling of 666707003370 in words is "six hundred sixty-six billion, seven hundred seven million, three thousand, three hundred seventy".