16168013 has 4 divisors (see below), whose sum is σ = 16325088. Its totient is φ = 16010940.

The previous prime is 16167961. The next prime is 16168067. The reversal of 16168013 is 31086161.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31086161 = 233 ⋅133417.

It is a cyclic number.

It is not a de Polignac number, because 16168013 - 2⁸ = 16167757 is a prime.

It is a super-2 number, since 2×16168013² = 522809288736338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16168093) 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, 78383 + ... + 78588.

It is an arithmetic number, because the mean of its divisors is an integer number (4081272).

Almost surely, 2^16168013 is an apocalyptic number.

It is an amenable number.

16168013 is a deficient number, since it is larger than the sum of its proper divisors (157075).

16168013 is a wasteful number, since it uses less digits than its factorization.

16168013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157074.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 16168013 is about 4020.9467790559. The cubic root of 16168013 is about 252.8631535607.

The spelling of 16168013 in words is "sixteen million, one hundred sixty-eight thousand, thirteen".