663542245366 has 128 divisors (see below), whose sum is σ = 1408016203776. Its totient is φ = 226043326080.

The previous prime is 663542245357. The next prime is 663542245367.

663542245366 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×663542245366² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663542245367) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4672785 + ... + 4812691.

It is an arithmetic number, because the mean of its divisors is an integer number (11000126592).

Almost surely, 2^663542245366 is an apocalyptic number.

663542245366 is an abundant number, since it is smaller than the sum of its proper divisors (744473958410).

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

663542245366 is a wasteful number, since it uses less digits than its factorization.

663542245366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140066.

The product of its digits is 18662400, while the sum is 52.

The spelling of 663542245366 in words is "six hundred sixty-three billion, five hundred forty-two million, two hundred forty-five thousand, three hundred sixty-six".