663705249662 has 48 divisors (see below), whose sum is σ = 1232182627200. Its totient is φ = 262533132576.

The previous prime is 663705249661. The next prime is 663705249667. The reversal of 663705249662 is 266942507366.

It is a super-2 number, since 2×663705249662² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 663705249598 and 663705249607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663705249661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35109089 + ... + 35127987.

It is an arithmetic number, because the mean of its divisors is an integer number (25670471400).

Almost surely, 2^663705249662 is an apocalyptic number.

663705249662 is a deficient number, since it is larger than the sum of its proper divisors (568477377538).

663705249662 is a wasteful number, since it uses less digits than its factorization.

663705249662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33777 (or 33764 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 56.

The spelling of 663705249662 in words is "six hundred sixty-three billion, seven hundred five million, two hundred forty-nine thousand, six hundred sixty-two".