66746814414 has 48 divisors (see below), whose sum is σ = 158899897728. Its totient is φ = 18627014448.

The previous prime is 66746814413. The next prime is 66746814467. The reversal of 66746814414 is 41441864766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66746814413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2627242 + ... + 2652525.

It is an arithmetic number, because the mean of its divisors is an integer number (3310414536).

Almost surely, 2^66746814414 is an apocalyptic number.

66746814414 is an abundant number, since it is smaller than the sum of its proper divisors (92153083314).

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

66746814414 is a wasteful number, since it uses less digits than its factorization.

66746814414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5279829 (or 5279822 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 51.

The spelling of 66746814414 in words is "sixty-six billion, seven hundred forty-six million, eight hundred fourteen thousand, four hundred fourteen".