66772146029 has 8 divisors (see below), whose sum is σ = 67161974880. Its totient is φ = 66383436816.

The previous prime is 66772146019. The next prime is 66772146037. The reversal of 66772146029 is 92064127766.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66772146029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66772146019) 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, 160139 + ... + 398984.

It is an arithmetic number, because the mean of its divisors is an integer number (8395246860).

Almost surely, 2^66772146029 is an apocalyptic number.

It is an amenable number.

66772146029 is a deficient number, since it is larger than the sum of its proper divisors (389828851).

66772146029 is a wasteful number, since it uses less digits than its factorization.

66772146029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559819.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 66772146029 in words is "sixty-six billion, seven hundred seventy-two million, one hundred forty-six thousand, twenty-nine".