16172012012 has 24 divisors (see below), whose sum is σ = 30530001936. Its totient is φ = 7451275968.

The previous prime is 16172011939. The next prime is 16172012033. The reversal of 16172012012 is 21021027161.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234383 + ... + 295430.

It is an arithmetic number, because the mean of its divisors is an integer number (1272083414).

Almost surely, 2^16172012012 is an apocalyptic number.

It is an amenable number.

16172012012 is a deficient number, since it is larger than the sum of its proper divisors (14357989924).

16172012012 is a wasteful number, since it uses less digits than its factorization.

16172012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530417 (or 530415 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 23.

Adding to 16172012012 its reverse (21021027161), we get a palindrome (37193039173).

The spelling of 16172012012 in words is "sixteen billion, one hundred seventy-two million, twelve thousand, twelve".