16401016 has 16 divisors (see below), whose sum is σ = 30957840. Its totient is φ = 8145600.

The previous prime is 16401013. The next prime is 16401019. The reversal of 16401016 is 61010461.

It is a happy number.

16401016 is nontrivially palindromic in base 15.

16401016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16401013) and next prime (16401019).

It is a junction number, because it is equal to n+sod(n) for n = 16400984 and 16401002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16401013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5581 + ... + 7996.

It is an arithmetic number, because the mean of its divisors is an integer number (1934865).

Almost surely, 2^16401016 is an apocalyptic number.

It is an amenable number.

16401016 is a deficient number, since it is larger than the sum of its proper divisors (14556824).

16401016 is a wasteful number, since it uses less digits than its factorization.

16401016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13734 (or 13730 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 16401016 is about 4049.8167859793. The cubic root of 16401016 is about 254.0720650292.

Adding to 16401016 its reverse (61010461), we get a palindrome (77411477).

The spelling of 16401016 in words is "sixteen million, four hundred one thousand, sixteen".