163531610460 has 144 divisors (see below), whose sum is σ = 518391042624. Its totient is φ = 41649721344.

The previous prime is 163531610447. The next prime is 163531610477. The reversal of 163531610460 is 64016135361.

163531610460 is a `hidden beast` number, since 1 + 6 + 3 + 5 + 31 + 610 + 4 + 6 + 0 = 666.

163531610460 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 2756874 + ... + 2815566.

It is an arithmetic number, because the mean of its divisors is an integer number (3599937796).

Almost surely, 2^163531610460 is an apocalyptic number.

163531610460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163531610460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259195521312).

163531610460 is an abundant number, since it is smaller than the sum of its proper divisors (354859432164).

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

163531610460 is a wasteful number, since it uses less digits than its factorization.

163531610460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59404 (or 59399 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 163531610460 in words is "one hundred sixty-three billion, five hundred thirty-one million, six hundred ten thousand, four hundred sixty".