163463012540 has 24 divisors (see below), whose sum is σ = 343793252880. Its totient is φ = 65285980928.

The previous prime is 163463012459. The next prime is 163463012543. The reversal of 163463012540 is 45210364361.

It is a self number, because there is not a number n which added to its sum of digits gives 163463012540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163463012543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6187997 + ... + 6214356.

It is an arithmetic number, because the mean of its divisors is an integer number (14324718870).

Almost surely, 2^163463012540 is an apocalyptic number.

163463012540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163463012540 is an abundant number, since it is smaller than the sum of its proper divisors (180330240340).

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

163463012540 is a wasteful number, since it uses less digits than its factorization.

163463012540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12403021 (or 12403019 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 163463012540 in words is "one hundred sixty-three billion, four hundred sixty-three million, twelve thousand, five hundred forty".