163624653420 has 96 divisors (see below), whose sum is σ = 461895168000. Its totient is φ = 43277082624.

The previous prime is 163624653391. The next prime is 163624653433. The reversal of 163624653420 is 24356426361.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9056556 + ... + 9074604.

It is an arithmetic number, because the mean of its divisors is an integer number (4811408000).

Almost surely, 2^163624653420 is an apocalyptic number.

163624653420 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 163624653420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230947584000).

163624653420 is an abundant number, since it is smaller than the sum of its proper divisors (298270514580).

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

163624653420 is a wasteful number, since it uses less digits than its factorization.

163624653420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19287 (or 19285 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 163624653420 in words is "one hundred sixty-three billion, six hundred twenty-four million, six hundred fifty-three thousand, four hundred twenty".