16166801 has 4 divisors (see below), whose sum is σ = 18476352. Its totient is φ = 13857252.

The previous prime is 16166783. The next prime is 16166827. The reversal of 16166801 is 10866161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16166801 - 2¹⁸ = 15904657 is a prime.

It is a super-2 number, since 2×16166801² = 522730909147202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16169801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154765 + ... + 1154778.

It is an arithmetic number, because the mean of its divisors is an integer number (4619088).

Almost surely, 2^16166801 is an apocalyptic number.

It is an amenable number.

16166801 is a deficient number, since it is larger than the sum of its proper divisors (2309551).

16166801 is an equidigital number, since it uses as much as digits as its factorization.

16166801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309550.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 16166801 is about 4020.7960654577. The cubic root of 16166801 is about 252.8568349570.

The spelling of 16166801 in words is "sixteen million, one hundred sixty-six thousand, eight hundred one".