163112644340 has 24 divisors (see below), whose sum is σ = 342683097120. Its totient is φ = 65217144608.

The previous prime is 163112644309. The next prime is 163112644351. The reversal of 163112644340 is 43446211361.

It is a self number, because there is not a number n which added to its sum of digits gives 163112644340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1696622 + ... + 1790181.

It is an arithmetic number, because the mean of its divisors is an integer number (14278462380).

Almost surely, 2^163112644340 is an apocalyptic number.

163112644340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163112644340 is an abundant number, since it is smaller than the sum of its proper divisors (179570452780).

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

163112644340 is a wasteful number, since it uses less digits than its factorization.

163112644340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3489151 (or 3489149 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 163112644340 in words is "one hundred sixty-three billion, one hundred twelve million, six hundred forty-four thousand, three hundred forty".