1616512012 has 6 divisors (see below), whose sum is σ = 2828896028. Its totient is φ = 808256004.

The previous prime is 1616512003. The next prime is 1616512057. The reversal of 1616512012 is 2102156161.

It is a happy number.

It is a super-2 number, since 2×1616512012² = 5226222169880576288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202063998 + ... + 202064005.

Almost surely, 2^1616512012 is an apocalyptic number.

It is an amenable number.

1616512012 is a deficient number, since it is larger than the sum of its proper divisors (1212384016).

1616512012 is a wasteful number, since it uses less digits than its factorization.

1616512012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404128007 (or 404128005 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 1616512012 is about 40205.8703673978. The cubic root of 1616512012 is about 1173.6167847458.

Adding to 1616512012 its reverse (2102156161), we get a palindrome (3718668173).

The spelling of 1616512012 in words is "one billion, six hundred sixteen million, five hundred twelve thousand, twelve".