163198011870 has 40 divisors (see below), whose sum is σ = 438821322984. Its totient is φ = 43519469616.

The previous prime is 163198011869. The next prime is 163198011877. The reversal of 163198011870 is 78110891361.

163198011870 is a `hidden beast` number, since 1 + 631 + 9 + 8 + 0 + 1 + 1 + 8 + 7 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163198011877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 100738704 + ... + 100740323.

Almost surely, 2^163198011870 is an apocalyptic number.

163198011870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163198011870 is an abundant number, since it is smaller than the sum of its proper divisors (275623311114).

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

163198011870 is a wasteful number, since it uses less digits than its factorization.

163198011870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201479046 (or 201479037 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 45.

The spelling of 163198011870 in words is "one hundred sixty-three billion, one hundred ninety-eight million, eleven thousand, eight hundred seventy".