163012977792 has 128 divisors (see below), whose sum is σ = 549845443200. Its totient is φ = 46575129600.

The previous prime is 163012977761. The next prime is 163012977797. The reversal of 163012977792 is 297779210361.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (163012977797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3344959 + ... + 3393342.

It is an arithmetic number, because the mean of its divisors is an integer number (4295667525).

Almost surely, 2^163012977792 is an apocalyptic number.

163012977792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163012977792 is an abundant number, since it is smaller than the sum of its proper divisors (386832465408).

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

163012977792 is an equidigital number, since it uses as much as digits as its factorization.

163012977792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6738331 (or 6738313 counting only the distinct ones).

The product of its (nonzero) digits is 2000376, while the sum is 54.

The spelling of 163012977792 in words is "one hundred sixty-three billion, twelve million, nine hundred seventy-seven thousand, seven hundred ninety-two".