66668037370 has 64 divisors (see below), whose sum is σ = 132163664256. Its totient is φ = 24011898880.

The previous prime is 66668037347. The next prime is 66668037419. The reversal of 66668037370 is 7373086666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7032954 + ... + 7042426.

It is an arithmetic number, because the mean of its divisors is an integer number (2065057254).

Almost surely, 2^66668037370 is an apocalyptic number.

66668037370 is a deficient number, since it is larger than the sum of its proper divisors (65495626886).

66668037370 is a wasteful number, since it uses less digits than its factorization.

66668037370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10095.

The product of its (nonzero) digits is 4572288, while the sum is 52.

The spelling of 66668037370 in words is "sixty-six billion, six hundred sixty-eight million, thirty-seven thousand, three hundred seventy".