663350406011 has 4 divisors (see below), whose sum is σ = 663352993632. Its totient is φ = 663347818392.

The previous prime is 663350406007. The next prime is 663350406013. The reversal of 663350406011 is 110604053366.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 663350406011 - 2² = 663350406007 is a prime.

It is a super-2 number, since 2×663350406011² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (663350406013) 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, 861020 + ... + 1438073.

It is an arithmetic number, because the mean of its divisors is an integer number (165838248408).

Almost surely, 2^663350406011 is an apocalyptic number.

663350406011 is a deficient number, since it is larger than the sum of its proper divisors (2587621).

663350406011 is a wasteful number, since it uses less digits than its factorization.

663350406011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2587620.

The product of its (nonzero) digits is 38880, while the sum is 35.

Adding to 663350406011 its reverse (110604053366), we get a palindrome (773954459377).

The spelling of 663350406011 in words is "six hundred sixty-three billion, three hundred fifty million, four hundred six thousand, eleven".