663072423434 has 32 divisors (see below), whose sum is σ = 1087348271616. Its totient is φ = 301895746560.

The previous prime is 663072423421. The next prime is 663072423437. The reversal of 663072423434 is 434324270366.

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, 4430129 + ... + 4577355.

It is an arithmetic number, because the mean of its divisors is an integer number (33979633488).

Almost surely, 2^663072423434 is an apocalyptic number.

663072423434 is a deficient number, since it is larger than the sum of its proper divisors (424275848182).

663072423434 is a wasteful number, since it uses less digits than its factorization.

663072423434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151550.

The product of its (nonzero) digits is 1741824, while the sum is 44.

The spelling of 663072423434 in words is "six hundred sixty-three billion, seventy-two million, four hundred twenty-three thousand, four hundred thirty-four".