16536402 has 48 divisors (see below), whose sum is σ = 38076480. Its totient is φ = 5175456.

The previous prime is 16536391. The next prime is 16536437. The reversal of 16536402 is 20463561.

16536402 is a `hidden beast` number, since 1 + 653 + 6 + 4 + 0 + 2 = 666.

It is a super-2 number, since 2×16536402² = 546905182211208, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24088 + ... + 24764.

It is an arithmetic number, because the mean of its divisors is an integer number (793260).

Almost surely, 2^16536402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16536402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19038240).

16536402 is an abundant number, since it is smaller than the sum of its proper divisors (21540078).

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

16536402 is a wasteful number, since it uses less digits than its factorization.

16536402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767 (or 764 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 16536402 is about 4066.4975101431. The cubic root of 16536402 is about 254.7692491561.

Adding to 16536402 its reverse (20463561), we get a palindrome (36999963).

The spelling of 16536402 in words is "sixteen million, five hundred thirty-six thousand, four hundred two".