16631022 has 8 divisors (see below), whose sum is σ = 33262056. Its totient is φ = 5543672.

The previous prime is 16631011. The next prime is 16631033. The reversal of 16631022 is 22013661.

It is a happy number.

16631022 is nontrivially palindromic in base 14.

It is an interprime number because it is at equal distance from previous prime (16631011) and next prime (16631033).

It is a sphenic number, since it is the product of 3 distinct primes.

16631022 is an admirable number.

It is a zygodrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 16631022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1385913 + ... + 1385924.

It is an arithmetic number, because the mean of its divisors is an integer number (4157757).

Almost surely, 2^16631022 is an apocalyptic number.

16631022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16631022 is a wasteful number, since it uses less digits than its factorization.

16631022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2771842.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 16631022 is about 4078.1150057349. The cubic root of 16631022 is about 255.2542485310.

Adding to 16631022 its reverse (22013661), we get a palindrome (38644683).

The spelling of 16631022 in words is "sixteen million, six hundred thirty-one thousand, twenty-two".