16530007 has 8 divisors (see below), whose sum is σ = 18053280. Its totient is φ = 15042720.

The previous prime is 16529987. The next prime is 16530013. The reversal of 16530007 is 70003561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16530007 is a prime.

It is a super-2 number, since 2×16530007² = 546482262840098, 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 16530007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16530067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8032 + ... + 9877.

It is an arithmetic number, because the mean of its divisors is an integer number (2256660).

Almost surely, 2^16530007 is an apocalyptic number.

16530007 is a deficient number, since it is larger than the sum of its proper divisors (1523273).

16530007 is a wasteful number, since it uses less digits than its factorization.

16530007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17993.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 16530007 is about 4065.7111309093. The cubic root of 16530007 is about 254.7364032481.

Adding to 16530007 its reverse (70003561), we get a palindrome (86533568).

The spelling of 16530007 in words is "sixteen million, five hundred thirty thousand, seven".