663163125456 has 40 divisors (see below), whose sum is σ = 1844953825120. Its totient is φ = 204050192256.

The previous prime is 663163125403. The next prime is 663163125463. The reversal of 663163125456 is 654521361366.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531380086 + ... + 531381333.

It is an arithmetic number, because the mean of its divisors is an integer number (46123845628).

Almost surely, 2^663163125456 is an apocalyptic number.

It is an amenable number.

663163125456 is an abundant number, since it is smaller than the sum of its proper divisors (1181790699664).

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

663163125456 is a wasteful number, since it uses less digits than its factorization.

663163125456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062761443 (or 1062761437 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 48.

The spelling of 663163125456 in words is "six hundred sixty-three billion, one hundred sixty-three million, one hundred twenty-five thousand, four hundred fifty-six".