663111060426 has 48 divisors (see below), whose sum is σ = 1464093086976. Its totient is φ = 216830341728.

The previous prime is 663111060421. The next prime is 663111060427. The reversal of 663111060426 is 624060111366.

It is a happy number.

663111060426 is a `hidden beast` number, since 6 + 6 + 3 + 11 + 10 + 604 + 26 = 666.

It is a super-3 number, since 3×663111060426³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (663111060421) 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 23 ways as a sum of consecutive naturals, for example, 5996431 + ... + 6106013.

It is an arithmetic number, because the mean of its divisors is an integer number (30501939312).

Almost surely, 2^663111060426 is an apocalyptic number.

663111060426 is an abundant number, since it is smaller than the sum of its proper divisors (800982026550).

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

663111060426 is a wasteful number, since it uses less digits than its factorization.

663111060426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115987 (or 115984 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 663111060426 in words is "six hundred sixty-three billion, one hundred eleven million, sixty thousand, four hundred twenty-six".