1136997666 has 96 divisors (see below), whose sum is σ = 2920944000. Its totient is φ = 319425120.

The previous prime is 1136997649. The next prime is 1136997671. The reversal of 1136997666 is 6667996311.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 375105 + ... + 378123.

It is an arithmetic number, because the mean of its divisors is an integer number (30426500).

Almost surely, 2^1136997666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1136997666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1460472000).

1136997666 is an abundant number, since it is smaller than the sum of its proper divisors (1783946334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1136997666 is a wasteful number, since it uses less digits than its factorization.

1136997666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3109 (or 3092 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 54.

The square root of 1136997666 is about 33719.3959910316. The cubic root of 1136997666 is about 1043.7260533261.

The spelling of 1136997666 in words is "one billion, one hundred thirty-six million, nine hundred ninety-seven thousand, six hundred sixty-six".