67531055663 has 4 divisors (see below), whose sum is σ = 71503470720. Its totient is φ = 63558640608.

The previous prime is 67531055611. The next prime is 67531055671. The reversal of 67531055663 is 36655013576.

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

It is a cyclic number.

It is not a de Polignac number, because 67531055663 - 2¹⁰ = 67531054639 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 (67531055863) 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, 1986207503 + ... + 1986207536.

It is an arithmetic number, because the mean of its divisors is an integer number (17875867680).

Almost surely, 2^67531055663 is an apocalyptic number.

67531055663 is a deficient number, since it is larger than the sum of its proper divisors (3972415057).

67531055663 is a wasteful number, since it uses less digits than its factorization.

67531055663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3972415056.

The product of its (nonzero) digits is 1701000, while the sum is 47.

The spelling of 67531055663 in words is "sixty-seven billion, five hundred thirty-one million, fifty-five thousand, six hundred sixty-three".