163505258412 has 24 divisors (see below), whose sum is σ = 390817448112. Its totient is φ = 53172441600.

The previous prime is 163505258383. The next prime is 163505258467. The reversal of 163505258412 is 214852505361.

163505258412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 166163389 + ... + 166164372.

It is an arithmetic number, because the mean of its divisors is an integer number (16284060338).

Almost surely, 2^163505258412 is an apocalyptic number.

163505258412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163505258412 is an abundant number, since it is smaller than the sum of its proper divisors (227312189700).

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

163505258412 is a wasteful number, since it uses less digits than its factorization.

163505258412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332327809 (or 332327807 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 42.

The spelling of 163505258412 in words is "one hundred sixty-three billion, five hundred five million, two hundred fifty-eight thousand, four hundred twelve".