163497960 has 128 divisors (see below), whose sum is σ = 556761600. Its totient is φ = 42658560.

The previous prime is 163497949. The next prime is 163497967. The reversal of 163497960 is 69794361.

163497960 is a `hidden beast` number, since 1 + 634 + 9 + 7 + 9 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (163497967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49150 + ... + 52370.

It is an arithmetic number, because the mean of its divisors is an integer number (4349700).

Almost surely, 2^163497960 is an apocalyptic number.

163497960 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 163497960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278380800).

163497960 is an abundant number, since it is smaller than the sum of its proper divisors (393263640).

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

163497960 is a wasteful number, since it uses less digits than its factorization.

163497960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3288 (or 3278 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 163497960 is about 12786.6320819831. The cubic root of 163497960 is about 546.8112562873.

The spelling of 163497960 in words is "one hundred sixty-three million, four hundred ninety-seven thousand, nine hundred sixty".