663165505136 has 20 divisors (see below), whose sum is σ = 1340747652432. Its totient is φ = 317166110976.

The previous prime is 663165505111. The next prime is 663165505139. The reversal of 663165505136 is 631505561366.

It is a happy number.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663165505139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 901039721 + ... + 901040456.

Almost surely, 2^663165505136 is an apocalyptic number.

It is an amenable number.

663165505136 is an abundant number, since it is smaller than the sum of its proper divisors (677582147296).

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

663165505136 is a wasteful number, since it uses less digits than its factorization.

663165505136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802080208 (or 1802080202 counting only the distinct ones).

The product of its (nonzero) digits is 1458000, while the sum is 47.

The spelling of 663165505136 in words is "six hundred sixty-three billion, one hundred sixty-five million, five hundred five thousand, one hundred thirty-six".