67046666651 has 4 divisors (see below), whose sum is σ = 70575438600. Its totient is φ = 63517894704.

The previous prime is 67046666579. The next prime is 67046666671. The reversal of 67046666651 is 15666664076.

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-67046666651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67046666593 and 67046666602.

It is not an unprimeable number, because it can be changed into a prime (67046666671) 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, 1764385946 + ... + 1764385983.

It is an arithmetic number, because the mean of its divisors is an integer number (17643859650).

Almost surely, 2^67046666651 is an apocalyptic number.

67046666651 is a deficient number, since it is larger than the sum of its proper divisors (3528771949).

67046666651 is a wasteful number, since it uses less digits than its factorization.

67046666651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3528771948.

The product of its (nonzero) digits is 6531840, while the sum is 53.

The spelling of 67046666651 in words is "sixty-seven billion, forty-six million, six hundred sixty-six thousand, six hundred fifty-one".