163690648 has 32 divisors (see below), whose sum is σ = 339831360. Its totient is φ = 73291680.

The previous prime is 163690619. The next prime is 163690651. The reversal of 163690648 is 846096361.

It is a super-3 number, since 3×163690648³ (a number of 26 digits) contains 333 as substring.

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, 7986 + ... + 19777.

It is an arithmetic number, because the mean of its divisors is an integer number (10619730).

Almost surely, 2^163690648 is an apocalyptic number.

It is an amenable number.

163690648 is an abundant number, since it is smaller than the sum of its proper divisors (176140712).

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

163690648 is a wasteful number, since it uses less digits than its factorization.

163690648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27847 (or 27843 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 163690648 is about 12794.1646073513. The cubic root of 163690648 is about 547.0259839466.

The spelling of 163690648 in words is "one hundred sixty-three million, six hundred ninety thousand, six hundred forty-eight".