66734716343430 has 32 divisors (see below), whose sum is σ = 160236021752064. Its totient is φ = 17787846299616.

The previous prime is 66734716343377. The next prime is 66734716343447. The reversal of 66734716343430 is 3434361743766.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 504811474 + ... + 504943653.

It is an arithmetic number, because the mean of its divisors is an integer number (5007375679752).

Almost surely, 2^{66734716343430} is an apocalyptic number.

66734716343430 is an abundant number, since it is smaller than the sum of its proper divisors (93501305408634).

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

66734716343430 is a wasteful number, since it uses less digits than its factorization.

66734716343430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009757340.

The product of its (nonzero) digits is 54867456, while the sum is 57.

The spelling of 66734716343430 in words is "sixty-six trillion, seven hundred thirty-four billion, seven hundred sixteen million, three hundred forty-three thousand, four hundred thirty".