663511745053577 has 16 divisors (see below), whose sum is σ = 758948841200640. Its totient is φ = 568237271315472.

The previous prime is 663511745053513. The next prime is 663511745053583. The reversal of 663511745053577 is 775350547115366.

It is a cyclic number.

It is not a de Polignac number, because 663511745053577 - 2⁶ = 663511745053513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (663511745053177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32369438 + ... + 48731960.

It is an arithmetic number, because the mean of its divisors is an integer number (47434302575040).

Almost surely, 2^{663511745053577} is an apocalyptic number.

It is an amenable number.

663511745053577 is a deficient number, since it is larger than the sum of its proper divisors (95437096147063).

663511745053577 is a wasteful number, since it uses less digits than its factorization.

663511745053577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16367492.

The product of its (nonzero) digits is 277830000, while the sum is 65.

The spelling of 663511745053577 in words is "six hundred sixty-three trillion, five hundred eleven billion, seven hundred forty-five million, fifty-three thousand, five hundred seventy-seven".