667422635741 has 4 divisors (see below), whose sum is σ = 696441011232. Its totient is φ = 638404260252.

The previous prime is 667422635729. The next prime is 667422635749. The reversal of 667422635741 is 147536224766.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 667422635741 - 2¹⁰ = 667422634717 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 (667422635749) 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, 14509187711 + ... + 14509187756.

It is an arithmetic number, because the mean of its divisors is an integer number (174110252808).

Almost surely, 2^667422635741 is an apocalyptic number.

It is an amenable number.

667422635741 is a deficient number, since it is larger than the sum of its proper divisors (29018375491).

667422635741 is a wasteful number, since it uses less digits than its factorization.

667422635741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29018375490.

The product of its digits is 10160640, while the sum is 53.

The spelling of 667422635741 in words is "six hundred sixty-seven billion, four hundred twenty-two million, six hundred thirty-five thousand, seven hundred forty-one".