163168642560 has 320 divisors, whose sum is σ = 650345946624. Its totient is φ = 33905049600.

The previous prime is 163168642541. The next prime is 163168642573. The reversal of 163168642560 is 65246861361.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent 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, 453400 + ... + 729320.

Almost surely, 2^163168642560 is an apocalyptic number.

163168642560 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 163168642560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325172973312).

163168642560 is an abundant number, since it is smaller than the sum of its proper divisors (487177304064).

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

163168642560 is a wasteful number, since it uses less digits than its factorization.

163168642560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275965 (or 275949 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 163168642560 in words is "one hundred sixty-three billion, one hundred sixty-eight million, six hundred forty-two thousand, five hundred sixty".