163836019872 has 168 divisors, whose sum is σ = 552694284576. Its totient is φ = 46810244736.

The previous prime is 163836019783. The next prime is 163836019873. The reversal of 163836019872 is 278910638361.

163836019872 is a `hidden beast` number, since 1 + 6 + 383 + 6 + 0 + 198 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

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 (163836019873) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 338358 + ... + 664949.

It is an arithmetic number, because the mean of its divisors is an integer number (3289846932).

Almost surely, 2^163836019872 is an apocalyptic number.

163836019872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163836019872 is an abundant number, since it is smaller than the sum of its proper divisors (388858264704).

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

163836019872 is an equidigital number, since it uses as much as digits as its factorization.

163836019872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003342 (or 1003319 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 163836019872 in words is "one hundred sixty-three billion, eight hundred thirty-six million, nineteen thousand, eight hundred seventy-two".