66695371201 has 8 divisors (see below), whose sum is σ = 68306217408. Its totient is φ = 65101218000.

The previous prime is 66695371157. The next prime is 66695371207. The reversal of 66695371201 is 10217359666.

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-66695371201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66695371207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4165165 + ... + 4181146.

It is an arithmetic number, because the mean of its divisors is an integer number (8538277176).

Almost surely, 2^66695371201 is an apocalyptic number.

66695371201 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

66695371201 is a deficient number, since it is larger than the sum of its proper divisors (1610846207).

66695371201 is a wasteful number, since it uses less digits than its factorization.

66695371201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8346503.

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 66695371201 in words is "sixty-six billion, six hundred ninety-five million, three hundred seventy-one thousand, two hundred one".