163661352 has 32 divisors (see below), whose sum is σ = 409510080. Its totient is φ = 54506240.

The previous prime is 163661347. The next prime is 163661357. The reversal of 163661352 is 253166361.

It is an interprime number because it is at equal distance from previous prime (163661347) and next prime (163661357).

It is not an unprimeable number, because it can be changed into a prime (163661357) 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, 35077 + ... + 39467.

It is an arithmetic number, because the mean of its divisors is an integer number (12797190).

Almost surely, 2^163661352 is an apocalyptic number.

163661352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163661352 is an abundant number, since it is smaller than the sum of its proper divisors (245848728).

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

163661352 is a wasteful number, since it uses less digits than its factorization.

163661352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5953 (or 5949 counting only the distinct ones).

The product of its digits is 19440, while the sum is 33.

The square root of 163661352 is about 12793.0196591735. The cubic root of 163661352 is about 546.9933479356.

The spelling of 163661352 in words is "one hundred sixty-three million, six hundred sixty-one thousand, three hundred fifty-two".