16166051 has 4 divisors (see below), whose sum is σ = 17635704. Its totient is φ = 14696400.

The previous prime is 16166041. The next prime is 16166057. The reversal of 16166051 is 15066161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15066161 = 11 ⋅1369651.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16166051 is a prime.

It is a super-2 number, since 2×16166051² = 522682409869202, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16166051.

It is not an unprimeable number, because it can be changed into a prime (16166057) 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, 734810 + ... + 734831.

It is an arithmetic number, because the mean of its divisors is an integer number (4408926).

Almost surely, 2^16166051 is an apocalyptic number.

16166051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16166051 is a deficient number, since it is larger than the sum of its proper divisors (1469653).

16166051 is a wasteful number, since it uses less digits than its factorization.

16166051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469652.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 16166051 is about 4020.7027992628. The cubic root of 16166051 is about 252.8529247718.

It can be divided in two parts, 1616 and 6051, that added together give a palindrome (7667).

The spelling of 16166051 in words is "sixteen million, one hundred sixty-six thousand, fifty-one".