16601069 has 2 divisors, whose sum is σ = 16601070. Its totient is φ = 16601068.

The previous prime is 16601051. The next prime is 16601093. The reversal of 16601069 is 96010661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15721225 + 879844 = 3965^2 + 938^2 .

It is a cyclic number.

It is not a de Polignac number, because 16601069 - 2¹² = 16596973 is a prime.

It is a super-3 number, since 3×16601069³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16601029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8300534 + 8300535.

It is an arithmetic number, because the mean of its divisors is an integer number (8300535).

Almost surely, 2^16601069 is an apocalyptic number.

It is an amenable number.

16601069 is a deficient number, since it is larger than the sum of its proper divisors (1).

16601069 is an equidigital number, since it uses as much as digits as its factorization.

16601069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 16601069 is about 4074.4409432461. The cubic root of 16601069 is about 255.1009160998.

The spelling of 16601069 in words is "sixteen million, six hundred one thousand, sixty-nine".