163156998 has 16 divisors (see below), whose sum is σ = 327072816. Its totient is φ = 54259200.

The previous prime is 163156979. The next prime is 163157011. The reversal of 163156998 is 899651361.

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, 28803 + ... + 33998.

It is an arithmetic number, because the mean of its divisors is an integer number (20442051).

Almost surely, 2^163156998 is an apocalyptic number.

163156998 is an abundant number, since it is smaller than the sum of its proper divisors (163915818).

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

163156998 is a wasteful number, since it uses less digits than its factorization.

163156998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63239.

The product of its digits is 349920, while the sum is 48.

The square root of 163156998 is about 12773.2923711939. The cubic root of 163156998 is about 546.4308812801.

The spelling of 163156998 in words is "one hundred sixty-three million, one hundred fifty-six thousand, nine hundred ninety-eight".