163381011642 has 24 divisors (see below), whose sum is σ = 357429013344. Its totient is φ = 53931595464.

The previous prime is 163381011617. The next prime is 163381011659. The reversal of 163381011642 is 246110183361.

163381011642 is a `hidden beast` number, since 1 + 6 + 3 + 3 + 8 + 1 + 0 + 1 + 1 + 642 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 163381011597 and 163381011606.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44059908 + ... + 44063615.

It is an arithmetic number, because the mean of its divisors is an integer number (14892875556).

Almost surely, 2^163381011642 is an apocalyptic number.

163381011642 is an abundant number, since it is smaller than the sum of its proper divisors (194048001702).

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

163381011642 is a wasteful number, since it uses less digits than its factorization.

163381011642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88123634 (or 88123631 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 163381011642 in words is "one hundred sixty-three billion, three hundred eighty-one million, eleven thousand, six hundred forty-two".