16631016 has 32 divisors (see below), whose sum is σ = 41718240. Its totient is φ = 5524928.

The previous prime is 16631011. The next prime is 16631033. The reversal of 16631016 is 61013661.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (16631011) 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, 7330 + ... + 9326.

It is an arithmetic number, because the mean of its divisors is an integer number (1303695).

Almost surely, 2^16631016 is an apocalyptic number.

It is an amenable number.

16631016 is an abundant number, since it is smaller than the sum of its proper divisors (25087224).

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

16631016 is a wasteful number, since it uses less digits than its factorization.

16631016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353 (or 2349 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 16631016 is about 4078.1142701008. The cubic root of 16631016 is about 255.2542178349.

Adding to 16631016 its reverse (61013661), we get a palindrome (77644677).

The spelling of 16631016 in words is "sixteen million, six hundred thirty-one thousand, sixteen".