663072423433 has 16 divisors (see below), whose sum is σ = 778318577920. Its totient is φ = 552958249536.

The previous prime is 663072423421. The next prime is 663072423437. The reversal of 663072423433 is 334324270366.

It is not a de Polignac number, because 663072423433 - 2⁵ = 663072423401 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 663072423433.

It is not an unprimeable number, because it can be changed into a prime (663072423437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5971660 + ... + 6081682.

It is an arithmetic number, because the mean of its divisors is an integer number (48644911120).

Almost surely, 2^663072423433 is an apocalyptic number.

It is an amenable number.

663072423433 is a deficient number, since it is larger than the sum of its proper divisors (115246154487).

663072423433 is a wasteful number, since it uses less digits than its factorization.

663072423433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133336.

The product of its (nonzero) digits is 1306368, while the sum is 43.

Adding to 663072423433 its reverse (334324270366), we get a palindrome (997396693799).

The spelling of 663072423433 in words is "six hundred sixty-three billion, seventy-two million, four hundred twenty-three thousand, four hundred thirty-three".