663072423402 has 16 divisors (see below), whose sum is σ = 1334927264832. Its totient is φ = 219560404800.

The previous prime is 663072423401. The next prime is 663072423421. The reversal of 663072423402 is 204324270366.

663072423402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (663072423401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365933103 + ... + 365934914.

It is an arithmetic number, because the mean of its divisors is an integer number (83432954052).

Almost surely, 2^663072423402 is an apocalyptic number.

663072423402 is an abundant number, since it is smaller than the sum of its proper divisors (671854841430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

663072423402 is a wasteful number, since it uses less digits than its factorization.

663072423402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731868173.

The product of its (nonzero) digits is 290304, while the sum is 39.

Adding to 663072423402 its reverse (204324270366), we get a palindrome (867396693768).

The spelling of 663072423402 in words is "six hundred sixty-three billion, seventy-two million, four hundred twenty-three thousand, four hundred two".