66751270142 has 16 divisors (see below), whose sum is σ = 100371365664. Its totient is φ = 33294240000.

The previous prime is 66751270139. The next prime is 66751270147. The reversal of 66751270142 is 24107215766.

It is a self number, because there is not a number n which added to its sum of digits gives 66751270142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66751270147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1493642 + ... + 1537682.

It is an arithmetic number, because the mean of its divisors is an integer number (6273210354).

Almost surely, 2^66751270142 is an apocalyptic number.

66751270142 is a deficient number, since it is larger than the sum of its proper divisors (33620095522).

66751270142 is a wasteful number, since it uses less digits than its factorization.

66751270142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45875.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 66751270142 in words is "sixty-six billion, seven hundred fifty-one million, two hundred seventy thousand, one hundred forty-two".