16167998 has 16 divisors (see below), whose sum is σ = 30236544. Its totient is φ = 6299160.

The previous prime is 16167961. The next prime is 16168067. The reversal of 16167998 is 89976161.

It is a super-2 number, since 2×16167998² = 522808318656008, which contains 22 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, 52340 + ... + 52647.

It is an arithmetic number, because the mean of its divisors is an integer number (1889784).

Almost surely, 2^16167998 is an apocalyptic number.

16167998 is a deficient number, since it is larger than the sum of its proper divisors (14068546).

16167998 is a wasteful number, since it uses less digits than its factorization.

16167998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105007.

The product of its digits is 163296, while the sum is 47.

The square root of 16167998 is about 4020.9449138231. The cubic root of 16167998 is about 252.8630753621.

The spelling of 16167998 in words is "sixteen million, one hundred sixty-seven thousand, nine hundred ninety-eight".