667466747413 has 4 divisors (see below), whose sum is σ = 667469514348. Its totient is φ = 667463980480.

The previous prime is 667466747411. The next prime is 667466747429. The reversal of 667466747413 is 314747664766.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 353713288644 + 313753458769 = 594738^2 + 560137^2 .

It is a cyclic number.

It is not a de Polignac number, because 667466747413 - 2¹ = 667466747411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667466747411) 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 3 ways as a sum of consecutive naturals, for example, 982978 + ... + 1516963.

It is an arithmetic number, because the mean of its divisors is an integer number (166867378587).

Almost surely, 2^667466747413 is an apocalyptic number.

It is an amenable number.

667466747413 is a deficient number, since it is larger than the sum of its proper divisors (2766935).

667466747413 is a wasteful number, since it uses less digits than its factorization.

667466747413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2766934.

The product of its digits is 85349376, while the sum is 61.

The spelling of 667466747413 in words is "six hundred sixty-seven billion, four hundred sixty-six million, seven hundred forty-seven thousand, four hundred thirteen".