66129841003 has 4 divisors (see below), whose sum is σ = 66169752040. Its totient is φ = 66089929968.

The previous prime is 66129840983. The next prime is 66129841133. The reversal of 66129841003 is 30014892166.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66129841003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66129845003) 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, 19953033 + ... + 19956346.

It is an arithmetic number, because the mean of its divisors is an integer number (16542438010).

Almost surely, 2^66129841003 is an apocalyptic number.

66129841003 is a deficient number, since it is larger than the sum of its proper divisors (39911037).

66129841003 is a wasteful number, since it uses less digits than its factorization.

66129841003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39911036.

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 66129841003 in words is "sixty-six billion, one hundred twenty-nine million, eight hundred forty-one thousand, three".