1136666889 has 12 divisors (see below), whose sum is σ = 1644019572. Its totient is φ = 756777600.

The previous prime is 1136666873. The next prime is 1136666893. The reversal of 1136666889 is 9886666311.

It can be written as a sum of positive squares in 2 ways, for example, as 474891264 + 661775625 = 21792^2 + 25725^2 .

It is not a de Polignac number, because 1136666889 - 2⁴ = 1136666873 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1136666689) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76132 + ... + 89829.

It is an arithmetic number, because the mean of its divisors is an integer number (137001631).

Almost surely, 2^1136666889 is an apocalyptic number.

It is an amenable number.

1136666889 is a deficient number, since it is larger than the sum of its proper divisors (507352683).

1136666889 is a wasteful number, since it uses less digits than its factorization.

1136666889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166728 (or 166725 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 1136666889 is about 33714.4907866039. The cubic root of 1136666889 is about 1043.6248294134.

The spelling of 1136666889 in words is "one billion, one hundred thirty-six million, six hundred sixty-six thousand, eight hundred eighty-nine".