1611216675 has 18 divisors (see below), whose sum is σ = 2885868492. Its totient is φ = 859315440.

The previous prime is 1611216583. The next prime is 1611216683. The reversal of 1611216675 is 5766121161.

It is a happy number.

It is not a de Polignac number, because 1611216675 - 2⁷ = 1611216547 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3580257 + ... + 3580706.

Almost surely, 2^1611216675 is an apocalyptic number.

1611216675 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1611216675 is a deficient number, since it is larger than the sum of its proper divisors (1274651817).

1611216675 is a wasteful number, since it uses less digits than its factorization.

1611216675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7160979 (or 7160971 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 1611216675 is about 40139.9635650059. The cubic root of 1611216675 is about 1172.3338795964. Note that the first 3 decimals are identical.

The spelling of 1611216675 in words is "one billion, six hundred eleven million, two hundred sixteen thousand, six hundred seventy-five".