66973062029 has 4 divisors (see below), whose sum is σ = 66973854684. Its totient is φ = 66972269376.

The previous prime is 66973062017. The next prime is 66973062073. The reversal of 66973062029 is 92026037966.

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

It can be written as a sum of positive squares in 2 ways, for example, as 49548534025 + 17424528004 = 222595^2 + 132002^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66973062029 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 (66973092029) 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, 252092 + ... + 444405.

It is an arithmetic number, because the mean of its divisors is an integer number (16743463671).

Almost surely, 2^66973062029 is an apocalyptic number.

It is an amenable number.

66973062029 is a deficient number, since it is larger than the sum of its proper divisors (792655).

66973062029 is an equidigital number, since it uses as much as digits as its factorization.

66973062029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792654.

The product of its (nonzero) digits is 1469664, while the sum is 50.

The spelling of 66973062029 in words is "sixty-six billion, nine hundred seventy-three million, sixty-two thousand, twenty-nine".