663001255545 has 8 divisors (see below), whose sum is σ = 1060802008896. Its totient is φ = 353600669616.

The previous prime is 663001255531. The next prime is 663001255547. The reversal of 663001255545 is 545552100366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 663001255545 - 2¹² = 663001251449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 663001255497 and 663001255506.

It is not an unprimeable number, because it can be changed into a prime (663001255547) 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 7 ways as a sum of consecutive naturals, for example, 22100041837 + ... + 22100041866.

It is an arithmetic number, because the mean of its divisors is an integer number (132600251112).

Almost surely, 2^663001255545 is an apocalyptic number.

It is an amenable number.

663001255545 is a deficient number, since it is larger than the sum of its proper divisors (397800753351).

663001255545 is a wasteful number, since it uses less digits than its factorization.

663001255545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44200083711.

The product of its (nonzero) digits is 540000, while the sum is 42.

The spelling of 663001255545 in words is "six hundred sixty-three billion, one million, two hundred fifty-five thousand, five hundred forty-five".