16990512 has 80 divisors (see below), whose sum is σ = 54734592. Its totient is φ = 4412160.

The previous prime is 16990507. The next prime is 16990517. The reversal of 16990512 is 21509961.

It is an interprime number because it is at equal distance from previous prime (16990507) and next prime (16990517).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (16990517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1398 + ... + 5994.

Almost surely, 2^16990512 is an apocalyptic number.

16990512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16990512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27367296).

16990512 is an abundant number, since it is smaller than the sum of its proper divisors (37744080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16990512 is a wasteful number, since it uses less digits than its factorization.

16990512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4626 (or 4620 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 16990512 is about 4121.9548760267. The cubic root of 16990512 is about 257.0803142427.

It can be divided in two parts, 16 and 990512, that added together give a triangular number (990528 = T₁₄₀₇).

The spelling of 16990512 in words is "sixteen million, nine hundred ninety thousand, five hundred twelve".