66703740404 has 24 divisors (see below), whose sum is σ = 133789756800. Its totient is φ = 28505401056.

The previous prime is 66703740347. The next prime is 66703740407. The reversal of 66703740404 is 40404730766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66703740407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3403232 + ... + 3422775.

It is an arithmetic number, because the mean of its divisors is an integer number (5574573200).

Almost surely, 2^66703740404 is an apocalyptic number.

It is an amenable number.

66703740404 is an abundant number, since it is smaller than the sum of its proper divisors (67086016396).

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

66703740404 is a wasteful number, since it uses less digits than its factorization.

66703740404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6826367 (or 6826365 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 41.

The spelling of 66703740404 in words is "sixty-six billion, seven hundred three million, seven hundred forty thousand, four hundred four".