66660260262 has 8 divisors (see below), whose sum is σ = 133320520536. Its totient is φ = 22220086752.

The previous prime is 66660260237. The next prime is 66660260267. The reversal of 66660260262 is 26206206666.

66660260262 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

66660260262 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66660260267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5555021683 + ... + 5555021694.

It is an arithmetic number, because the mean of its divisors is an integer number (16665065067).

Almost surely, 2^66660260262 is an apocalyptic number.

66660260262 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66660260262 is a wasteful number, since it uses less digits than its factorization.

66660260262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11110043382.

The product of its (nonzero) digits is 373248, while the sum is 42.

The spelling of 66660260262 in words is "sixty-six billion, six hundred sixty million, two hundred sixty thousand, two hundred sixty-two".