66765306670260 has 48 divisors (see below), whose sum is σ = 203937664012992. Its totient is φ = 16185528889600.

The previous prime is 66765306670243. The next prime is 66765306670267. The reversal of 66765306670260 is 6207660356766.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 66765306670194 and 66765306670203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66765306670267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50579777121 + ... + 50579778440.

It is an arithmetic number, because the mean of its divisors is an integer number (4248701333604).

Almost surely, 2^{66765306670260} is an apocalyptic number.

66765306670260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66765306670260 is an abundant number, since it is smaller than the sum of its proper divisors (137172357342732).

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

66765306670260 is a wasteful number, since it uses less digits than its factorization.

66765306670260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101159555584 (or 101159555582 counting only the distinct ones).

The product of its (nonzero) digits is 68584320, while the sum is 60.

The spelling of 66765306670260 in words is "sixty-six trillion, seven hundred sixty-five billion, three hundred six million, six hundred seventy thousand, two hundred sixty".