163710164440 has 32 divisors (see below), whose sum is σ = 377331968160. Its totient is φ = 63886892800.

The previous prime is 163710164381. The next prime is 163710164447. The reversal of 163710164440 is 44461017361.

It is a self number, because there is not a number n which added to its sum of digits gives 163710164440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163710164447) 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, 49909996 + ... + 49913275.

It is an arithmetic number, because the mean of its divisors is an integer number (11791624005).

Almost surely, 2^163710164440 is an apocalyptic number.

163710164440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163710164440 is an abundant number, since it is smaller than the sum of its proper divisors (213621803720).

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

163710164440 is a wasteful number, since it uses less digits than its factorization.

163710164440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99823323 (or 99823319 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The spelling of 163710164440 in words is "one hundred sixty-three billion, seven hundred ten million, one hundred sixty-four thousand, four hundred forty".