163451505660 has 48 divisors (see below), whose sum is σ = 457703488032. Its totient is φ = 43583328000.

The previous prime is 163451505647. The next prime is 163451505661. The reversal of 163451505660 is 66505154361.

163451505660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163451505661) 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 15 ways as a sum of consecutive naturals, for example, 627330 + ... + 848790.

It is an arithmetic number, because the mean of its divisors is an integer number (9535489334).

Almost surely, 2^163451505660 is an apocalyptic number.

163451505660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163451505660 is an abundant number, since it is smaller than the sum of its proper divisors (294251982372).

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

163451505660 is a wasteful number, since it uses less digits than its factorization.

163451505660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233774 (or 233772 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 163451505660 in words is "one hundred sixty-three billion, four hundred fifty-one million, five hundred five thousand, six hundred sixty".