16000016 has 20 divisors (see below), whose sum is σ = 31310124. Its totient is φ = 7920000.

The previous prime is 15999989. The next prime is 16000057. The reversal of 16000016 is 61000061.

It can be written as a sum of positive squares in 2 ways, for example, as 15366400 + 633616 = 3920^2 + 796^2 .

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, 3335 + ... + 6566.

Almost surely, 2^16000016 is an apocalyptic number.

16000016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16000016 is a deficient number, since it is larger than the sum of its proper divisors (15310108).

16000016 is a wasteful number, since it uses less digits than its factorization.

16000016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10010 (or 10004 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 16000016 is about 4000.0019999995. The cubic root of 16000016 is about 251.9842939737.

Adding to 16000016 its reverse (61000061), we get a palindrome (77000077).

It can be divided in two parts, 160000 and 16, that multiplied together give a 4-th power (2560000 = 40⁴).

The spelling of 16000016 in words is "sixteen million, sixteen", and thus it is an aban number and an uban number.