65920012 has 12 divisors (see below), whose sum is σ = 119081536. Its totient is φ = 31896720.

The previous prime is 65919983. The next prime is 65920031. The reversal of 65920012 is 21002956.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

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, 265683 + ... + 265930.

Almost surely, 2^65920012 is an apocalyptic number.

65920012 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

65920012 is a deficient number, since it is larger than the sum of its proper divisors (53161524).

65920012 is a wasteful number, since it uses less digits than its factorization.

65920012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531648 (or 531646 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 65920012 is about 8119.1139910707. The cubic root of 65920012 is about 403.9606781322.

Adding to 65920012 its reverse (21002956), we get a palindrome (86922968).

The spelling of 65920012 in words is "sixty-five million, nine hundred twenty thousand, twelve".