163146416521644 has 24 divisors (see below), whose sum is σ = 422972190982320. Its totient is φ = 54382138840512.

The previous prime is 163146416521643. The next prime is 163146416521657. The reversal of 163146416521644 is 446125614641361.

163146416521644 is a `hidden beast` number, since 1 + 6 + 3 + 1 + 4 + 6 + 416 + 5 + 216 + 4 + 4 = 666.

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 (163146416521643) 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 7 ways as a sum of consecutive naturals, for example, 755307483789 + ... + 755307484004.

It is an arithmetic number, because the mean of its divisors is an integer number (17623841290930).

Almost surely, 2^{163146416521644} is an apocalyptic number.

It is an amenable number.

163146416521644 is an abundant number, since it is smaller than the sum of its proper divisors (259825774460676).

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

163146416521644 is a wasteful number, since it uses less digits than its factorization.

163146416521644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510614967806 (or 1510614967798 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 54.

The spelling of 163146416521644 in words is "one hundred sixty-three trillion, one hundred forty-six billion, four hundred sixteen million, five hundred twenty-one thousand, six hundred forty-four".