66703340404 has 12 divisors (see below), whose sum is σ = 116732752164. Its totient is φ = 33351125504.

The previous prime is 66703340393. The next prime is 66703340411. The reversal of 66703340404 is 40404330766.

It can be written as a sum of positive squares in 2 ways, for example, as 9653062500 + 57050277904 = 98250^2 + 238852^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282132 + ... + 461524.

It is an arithmetic number, because the mean of its divisors is an integer number (9727729347).

Almost surely, 2^66703340404 is an apocalyptic number.

It is an amenable number.

66703340404 is a deficient number, since it is larger than the sum of its proper divisors (50029411760).

66703340404 is a wasteful number, since it uses less digits than its factorization.

66703340404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272354 (or 272352 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 37.

The spelling of 66703340404 in words is "sixty-six billion, seven hundred three million, three hundred forty thousand, four hundred four".