1216207675 has 6 divisors (see below), whose sum is σ = 1508097548. Its totient is φ = 972966120.

The previous prime is 1216207669. The next prime is 1216207697. The reversal of 1216207675 is 5767026121.

It is not a de Polignac number, because 1216207675 - 2⁹ = 1216207163 is a prime.

It is a super-2 number, since 2×1216207675² = 2958322217457811250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24324129 + ... + 24324178.

Almost surely, 2^1216207675 is an apocalyptic number.

1216207675 is a deficient number, since it is larger than the sum of its proper divisors (291889873).

1216207675 is an equidigital number, since it uses as much as digits as its factorization.

1216207675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48648317 (or 48648312 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 1216207675 is about 34874.1691657307. The cubic root of 1216207675 is about 1067.4214192221.

The spelling of 1216207675 in words is "one billion, two hundred sixteen million, two hundred seven thousand, six hundred seventy-five".