66660611434230 has 128 divisors (see below), whose sum is σ = 180703885934592. Its totient is φ = 15591605040000.

The previous prime is 66660611434187. The next prime is 66660611434231. The reversal of 66660611434230 is 3243411606666.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 66660611434230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66660611434231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6457056 + ... + 13229315.

It is an arithmetic number, because the mean of its divisors is an integer number (1411749108864).

Almost surely, 2^{66660611434230} is an apocalyptic number.

66660611434230 is an abundant number, since it is smaller than the sum of its proper divisors (114043274500362).

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

66660611434230 is a wasteful number, since it uses less digits than its factorization.

66660611434230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19686754.

The product of its (nonzero) digits is 2239488, while the sum is 48.

The spelling of 66660611434230 in words is "sixty-six trillion, six hundred sixty billion, six hundred eleven million, four hundred thirty-four thousand, two hundred thirty".