663140402663 has 8 divisors (see below), whose sum is σ = 664010524800. Its totient is φ = 662270558200.

The previous prime is 663140402627. The next prime is 663140402669. The reversal of 663140402663 is 366204041366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 663140402663 - 2⁶ = 663140402599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 663140402663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663140402669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4946288 + ... + 5078586.

It is an arithmetic number, because the mean of its divisors is an integer number (83001315600).

Almost surely, 2^663140402663 is an apocalyptic number.

663140402663 is a deficient number, since it is larger than the sum of its proper divisors (870122137).

663140402663 is a wasteful number, since it uses less digits than its factorization.

663140402663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138837.

The product of its (nonzero) digits is 373248, while the sum is 41.

The spelling of 663140402663 in words is "six hundred sixty-three billion, one hundred forty million, four hundred two thousand, six hundred sixty-three".