1136653661 has 16 divisors (see below), whose sum is σ = 1336946688. Its totient is φ = 952708800.

The previous prime is 1136653627. The next prime is 1136653667. The reversal of 1136653661 is 1663566311.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1136653661 - 2⁶ = 1136653597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1136653667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130340 + ... + 138786.

It is an arithmetic number, because the mean of its divisors is an integer number (83559168).

Almost surely, 2^1136653661 is an apocalyptic number.

1136653661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1136653661 is a deficient number, since it is larger than the sum of its proper divisors (200293027).

1136653661 is a wasteful number, since it uses less digits than its factorization.

1136653661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9412.

The product of its digits is 58320, while the sum is 38.

The square root of 1136653661 is about 33714.2946092603. The cubic root of 1136653661 is about 1043.6207809911.

The spelling of 1136653661 in words is "one billion, one hundred thirty-six million, six hundred fifty-three thousand, six hundred sixty-one".