220363234664 has 8 divisors (see below), whose sum is σ = 413181065010. Its totient is φ = 110181617328.

The previous prime is 220363234657. The next prime is 220363234711. The reversal of 220363234664 is 466432363022.

220363234664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 171636204100 + 48727030564 = 414290^2 + 220742^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×220363234664² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13772702159 + ... + 13772702174.

Almost surely, 2^220363234664 is an apocalyptic number.

It is an amenable number.

220363234664 is a deficient number, since it is larger than the sum of its proper divisors (192817830346).

220363234664 is a wasteful number, since it uses less digits than its factorization.

220363234664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27545404339 (or 27545404335 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 41.

Adding to 220363234664 its reverse (466432363022), we get a palindrome (686795597686).

The spelling of 220363234664 in words is "two hundred twenty billion, three hundred sixty-three million, two hundred thirty-four thousand, six hundred sixty-four".