66604014250 has 32 divisors (see below), whose sum is σ = 124738632720. Its totient is φ = 26629657600.

The previous prime is 66604014229. The next prime is 66604014251. The reversal of 66604014250 is 5241040666.

66604014250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 2218504201 + 64385510049 = 47101^2 + 253743^2 .

It is not an unprimeable number, because it can be changed into a prime (66604014251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 509646 + ... + 626854.

Almost surely, 2^66604014250 is an apocalyptic number.

66604014250 is a deficient number, since it is larger than the sum of its proper divisors (58134618470).

66604014250 is a wasteful number, since it uses less digits than its factorization.

66604014250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119499 (or 119489 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 66604014250 in words is "sixty-six billion, six hundred four million, fourteen thousand, two hundred fifty".