67406703340667 has 16 divisors (see below), whose sum is σ = 70725319921152. Its totient is φ = 64167808548960.

The previous prime is 67406703340663. The next prime is 67406703340727. The reversal of 67406703340667 is 76604330760476.

It is a cyclic number.

It is not a de Polignac number, because 67406703340667 - 2² = 67406703340663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67406703340661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1388309 + ... + 11693622.

It is an arithmetic number, because the mean of its divisors is an integer number (4420332495072).

Almost surely, 2^{67406703340667} is an apocalyptic number.

67406703340667 is a deficient number, since it is larger than the sum of its proper divisors (3318616580485).

67406703340667 is a wasteful number, since it uses less digits than its factorization.

67406703340667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13084978.

The product of its (nonzero) digits is 64012032, while the sum is 59.

The spelling of 67406703340667 in words is "sixty-seven trillion, four hundred six billion, seven hundred three million, three hundred forty thousand, six hundred sixty-seven".