163552563764 has 6 divisors (see below), whose sum is σ = 286216986594. Its totient is φ = 81776281880.

The previous prime is 163552563763. The next prime is 163552563781. The reversal of 163552563764 is 467365255361.

It can be written as a sum of positive squares in only one way, i.e., 146245056400 + 17307507364 = 382420^2 + 131558^2 .

It is a super-2 number, since 2×163552563764² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163552563763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20444070467 + ... + 20444070474.

It is an arithmetic number, because the mean of its divisors is an integer number (47702831099).

Almost surely, 2^163552563764 is an apocalyptic number.

It is an amenable number.

163552563764 is a deficient number, since it is larger than the sum of its proper divisors (122664422830).

163552563764 is a wasteful number, since it uses less digits than its factorization.

163552563764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40888140945 (or 40888140943 counting only the distinct ones).

The product of its digits is 13608000, while the sum is 53.

The spelling of 163552563764 in words is "one hundred sixty-three billion, five hundred fifty-two million, five hundred sixty-three thousand, seven hundred sixty-four".