163895666460 has 24 divisors (see below), whose sum is σ = 458907866256. Its totient is φ = 43705511040.

The previous prime is 163895666437. The next prime is 163895666477. The reversal of 163895666460 is 64666598361.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (60), and also a Moran number because the ratio is a prime number: 2731594441 = 163895666460 / (1 + 6 + 3 + 8 + 9 + 5 + 6 + 6 + 6 + 4 + 6 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 163895666394 and 163895666403.

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, 1365797161 + ... + 1365797280.

It is an arithmetic number, because the mean of its divisors is an integer number (19121161094).

Almost surely, 2^163895666460 is an apocalyptic number.

163895666460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163895666460 is an abundant number, since it is smaller than the sum of its proper divisors (295012199796).

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

163895666460 is a wasteful number, since it uses less digits than its factorization.

163895666460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731594453 (or 2731594451 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 60.

The spelling of 163895666460 in words is "one hundred sixty-three billion, eight hundred ninety-five million, six hundred sixty-six thousand, four hundred sixty".