163943132769 has 24 divisors (see below), whose sum is σ = 255106359872. Its totient is φ = 100854966240.

The previous prime is 163943132711. The next prime is 163943132779. The reversal of 163943132769 is 967231349361.

163943132769 is a `hidden beast` number, since 163 + 94 + 313 + 27 + 69 = 666.

163943132769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 163943132769 - 2⁸ = 163943132513 is a prime.

It is a super-2 number, since 2×163943132769² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (163943132779) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 130404 + ... + 587274.

Almost surely, 2^163943132769 is an apocalyptic number.

It is an amenable number.

163943132769 is a deficient number, since it is larger than the sum of its proper divisors (91163227103).

163943132769 is a wasteful number, since it uses less digits than its factorization.

163943132769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459957 (or 459954 counting only the distinct ones).

The product of its digits is 4408992, while the sum is 54.

The spelling of 163943132769 in words is "one hundred sixty-three billion, nine hundred forty-three million, one hundred thirty-two thousand, seven hundred sixty-nine".