16671012 has 12 divisors (see below), whose sum is σ = 38899056. Its totient is φ = 5557000.

The previous prime is 16671001. The next prime is 16671019. The reversal of 16671012 is 21017661.

16671012 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×16671012² = 555845282208288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16671019) 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, 694614 + ... + 694637.

It is an arithmetic number, because the mean of its divisors is an integer number (3241588).

Almost surely, 2^16671012 is an apocalyptic number.

16671012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16671012 is an abundant number, since it is smaller than the sum of its proper divisors (22228044).

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

16671012 is a wasteful number, since it uses less digits than its factorization.

16671012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389258 (or 1389256 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 16671012 is about 4083.0150624263. The cubic root of 16671012 is about 255.4586746683.

Adding to 16671012 its reverse (21017661), we get a palindrome (37688673).

The spelling of 16671012 in words is "sixteen million, six hundred seventy-one thousand, twelve".