67660372201 has 4 divisors (see below), whose sum is σ = 67660980804. Its totient is φ = 67659763600.

The previous prime is 67660372193. The next prime is 67660372223. The reversal of 67660372201 is 10227306676.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 528080400 + 67132291801 = 22980^2 + 259099^2 .

It is a cyclic number.

It is not a de Polignac number, because 67660372201 - 2³ = 67660372193 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67660372231) 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, 84730 + ... + 377491.

It is an arithmetic number, because the mean of its divisors is an integer number (16915245201).

Almost surely, 2^67660372201 is an apocalyptic number.

It is an amenable number.

67660372201 is a deficient number, since it is larger than the sum of its proper divisors (608603).

67660372201 is a wasteful number, since it uses less digits than its factorization.

67660372201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608602.

The product of its (nonzero) digits is 127008, while the sum is 40.

Adding to 67660372201 its reverse (10227306676), we get a palindrome (77887678877).

The spelling of 67660372201 in words is "sixty-seven billion, six hundred sixty million, three hundred seventy-two thousand, two hundred one".