1133555664 has 20 divisors (see below), whose sum is σ = 2928352256. Its totient is φ = 377851872.

The previous prime is 1133555653. The next prime is 1133555669. The reversal of 1133555664 is 4665553311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133555669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11807824 + ... + 11807919.

Almost surely, 2^1133555664 is an apocalyptic number.

It is an amenable number.

1133555664 is an abundant number, since it is smaller than the sum of its proper divisors (1794796592).

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

1133555664 is a wasteful number, since it uses less digits than its factorization.

1133555664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23615754 (or 23615748 counting only the distinct ones).

The product of its digits is 162000, while the sum is 39.

The square root of 1133555664 is about 33668.3184017260. The cubic root of 1133555664 is about 1042.6717742816.

The spelling of 1133555664 in words is "one billion, one hundred thirty-three million, five hundred fifty-five thousand, six hundred sixty-four".