67213252665601 has 32 divisors (see below), whose sum is σ = 84616768604160. Its totient is φ = 52055723782656.

The previous prime is 67213252665589. The next prime is 67213252665673. The reversal of 67213252665601 is 10656625231276.

It is a cyclic number.

It is not a de Polignac number, because 67213252665601 - 2¹⁹ = 67213252141313 is a prime.

It is a super-3 number, since 3×67213252665601³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67213252662601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30598896 + ... + 32721841.

It is an arithmetic number, because the mean of its divisors is an integer number (2644274018880).

Almost surely, 2^{67213252665601} is an apocalyptic number.

It is an amenable number.

67213252665601 is a deficient number, since it is larger than the sum of its proper divisors (17403515938559).

67213252665601 is a wasteful number, since it uses less digits than its factorization.

67213252665601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63321133.

The product of its (nonzero) digits is 5443200, while the sum is 52.

Adding to 67213252665601 its reverse (10656625231276), we get a palindrome (77869877896877).

The spelling of 67213252665601 in words is "sixty-seven trillion, two hundred thirteen billion, two hundred fifty-two million, six hundred sixty-five thousand, six hundred one".