163440354315012 has 12 divisors (see below), whose sum is σ = 381360826735056. Its totient is φ = 54480118105000.

The previous prime is 163440354314879. The next prime is 163440354315031. The reversal of 163440354315012 is 210513453044361.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6810014763114 + ... + 6810014763137.

It is an arithmetic number, because the mean of its divisors is an integer number (31780068894588).

Almost surely, 2^{163440354315012} is an apocalyptic number.

163440354315012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163440354315012 is an abundant number, since it is smaller than the sum of its proper divisors (217920472420044).

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

163440354315012 is a wasteful number, since it uses less digits than its factorization.

163440354315012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13620029526258 (or 13620029526256 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 163440354315012 in words is "one hundred sixty-three trillion, four hundred forty billion, three hundred fifty-four million, three hundred fifteen thousand, twelve".