16690536 has 80 divisors (see below), whose sum is σ = 47916000. Its totient is φ = 5425056.

The previous prime is 16690511. The next prime is 16690537. The reversal of 16690536 is 63509661.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 16690536.

It is not an unprimeable number, because it can be changed into a prime (16690537) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 27565 + ... + 28163.

It is an arithmetic number, because the mean of its divisors is an integer number (598950).

Almost surely, 2^16690536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16690536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23958000).

16690536 is an abundant number, since it is smaller than the sum of its proper divisors (31225464).

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

16690536 is a wasteful number, since it uses less digits than its factorization.

16690536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660 (or 647 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 16690536 is about 4085.4052430573. The cubic root of 16690536 is about 255.5583612658.

The spelling of 16690536 in words is "sixteen million, six hundred ninety thousand, five hundred thirty-six".