66760268488 has 16 divisors (see below), whose sum is σ = 129213423360. Its totient is φ = 32303355600.

The previous prime is 66760268483. The next prime is 66760268503. The reversal of 66760268488 is 88486206766.

It is a super-2 number, since 2×66760268488² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66760268483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134597068 + ... + 134597563.

It is an arithmetic number, because the mean of its divisors is an integer number (8075838960).

Almost surely, 2^66760268488 is an apocalyptic number.

It is an amenable number.

66760268488 is a deficient number, since it is larger than the sum of its proper divisors (62453154872).

66760268488 is a wasteful number, since it uses less digits than its factorization.

66760268488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269194668 (or 269194664 counting only the distinct ones).

The product of its (nonzero) digits is 37158912, while the sum is 61.

The spelling of 66760268488 in words is "sixty-six billion, seven hundred sixty million, two hundred sixty-eight thousand, four hundred eighty-eight".