1200664516 has 6 divisors (see below), whose sum is σ = 2101162910. Its totient is φ = 600332256.

The previous prime is 1200664513. The next prime is 1200664519. The reversal of 1200664516 is 6154660021.

It is an interprime number because it is at equal distance from previous prime (1200664513) and next prime (1200664519).

It can be written as a sum of positive squares in only one way, i.e., 1186526916 + 14137600 = 34446^2 + 3760^2 .

It is not an unprimeable number, because it can be changed into a prime (1200664513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150083061 + ... + 150083068.

Almost surely, 2^1200664516 is an apocalyptic number.

It is an amenable number.

1200664516 is a deficient number, since it is larger than the sum of its proper divisors (900498394).

1200664516 is a wasteful number, since it uses less digits than its factorization.

1200664516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300166133 (or 300166131 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1200664516 is about 34650.6062861821. The cubic root of 1200664516 is about 1062.8546867700.

The spelling of 1200664516 in words is "one billion, two hundred million, six hundred sixty-four thousand, five hundred sixteen".