663218401134 has 32 divisors (see below), whose sum is σ = 1384570047744. Its totient is φ = 211390344000.

The previous prime is 663218401133. The next prime is 663218401231. The reversal of 663218401134 is 431104812366.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 663218401092 and 663218401101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663218401133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386584 + ... + 1214859.

It is an arithmetic number, because the mean of its divisors is an integer number (43267813992).

Almost surely, 2^663218401134 is an apocalyptic number.

663218401134 is an abundant number, since it is smaller than the sum of its proper divisors (721351646610).

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

663218401134 is a wasteful number, since it uses less digits than its factorization.

663218401134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604472.

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 663218401134 in words is "six hundred sixty-three billion, two hundred eighteen million, four hundred one thousand, one hundred thirty-four".