163655125552 has 20 divisors (see below), whose sum is σ = 317089198296. Its totient is φ = 81825655040.

The previous prime is 163655125531. The next prime is 163655125553. The reversal of 163655125552 is 255521556361.

It is not an unprimeable number, because it can be changed into a prime (163655125553) 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, 806103 + ... + 988489.

Almost surely, 2^163655125552 is an apocalyptic number.

It is an amenable number.

163655125552 is a deficient number, since it is larger than the sum of its proper divisors (153434072744).

163655125552 is a wasteful number, since it uses less digits than its factorization.

163655125552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238476 (or 238470 counting only the distinct ones).

The product of its digits is 1350000, while the sum is 46.

The spelling of 163655125552 in words is "one hundred sixty-three billion, six hundred fifty-five million, one hundred twenty-five thousand, five hundred fifty-two".