1199116611 has 48 divisors (see below), whose sum is σ = 2229147648. Its totient is φ = 602812800.

The previous prime is 1199116591. The next prime is 1199116631. The reversal of 1199116611 is 1166119911.

It is an interprime number because it is at equal distance from previous prime (1199116591) and next prime (1199116631).

It is not a de Polignac number, because 1199116611 - 2⁶ = 1199116547 is a prime.

It is a super-2 number, since 2×1199116611² = 2875761293552250642, which contains 22 as substring.

1199116611 is a strobogrammatic number because it is the same when read upside-down.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1199116631) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6426 + ... + 49391.

It is an arithmetic number, because the mean of its divisors is an integer number (46440576).

Almost surely, 2^1199116611 is an apocalyptic number.

1199116611 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1199116611 is a deficient number, since it is larger than the sum of its proper divisors (1030031037).

1199116611 is a wasteful number, since it uses less digits than its factorization.

1199116611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55872 (or 55869 counting only the distinct ones).

The product of its digits is 2916, while the sum is 36.

The square root of 1199116611 is about 34628.2631819732. The cubic root of 1199116611 is about 1062.3977438107.

The spelling of 1199116611 in words is "one billion, one hundred ninety-nine million, one hundred sixteen thousand, six hundred eleven".