663702641375 has 16 divisors (see below), whose sum is σ = 855020285184. Its totient is φ = 513834300000.

The previous prime is 663702641359. The next prime is 663702641389. The reversal of 663702641375 is 573146207366.

It is not a de Polignac number, because 663702641375 - 2⁴ = 663702641359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85635176 + ... + 85642925.

It is an arithmetic number, because the mean of its divisors is an integer number (53438767824).

Almost surely, 2^663702641375 is an apocalyptic number.

663702641375 is a deficient number, since it is larger than the sum of its proper divisors (191317643809).

663702641375 is a wasteful number, since it uses less digits than its factorization.

663702641375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171278147 (or 171278137 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 50.

The spelling of 663702641375 in words is "six hundred sixty-three billion, seven hundred two million, six hundred forty-one thousand, three hundred seventy-five".