16571012 has 6 divisors (see below), whose sum is σ = 28999278. Its totient is φ = 8285504.

The previous prime is 16570993. The next prime is 16571041. The reversal of 16571012 is 21017561.

It can be written as a sum of positive squares in only one way, i.e., 9096256 + 7474756 = 3016^2 + 2734^2 .

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 as a sum of consecutive naturals, namely, 2071373 + ... + 2071380.

It is an arithmetic number, because the mean of its divisors is an integer number (4833213).

Almost surely, 2^16571012 is an apocalyptic number.

It is an amenable number.

16571012 is a deficient number, since it is larger than the sum of its proper divisors (12428266).

16571012 is a wasteful number, since it uses less digits than its factorization.

16571012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4142757 (or 4142755 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 16571012 is about 4070.7507907019. The cubic root of 16571012 is about 254.9468657715.

Adding to 16571012 its reverse (21017561), we get a palindrome (37588573).

The spelling of 16571012 in words is "sixteen million, five hundred seventy-one thousand, twelve".