1153656000 has 672 divisors, whose sum is σ = 4968849600. Its totient is φ = 261273600.

The previous prime is 1153655999. The next prime is 1153656013. The reversal of 1153656000 is 6563511.

It is a happy number.

1153656000 is a `hidden beast` number, since 1 + 1 + 5 + 3 + 656 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10583946 + ... + 10584054.

Almost surely, 2^1153656000 is an apocalyptic number.

1153656000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1153656000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2484424800).

1153656000 is an abundant number, since it is smaller than the sum of its proper divisors (3815193600).

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

1153656000 is a wasteful number, since it uses less digits than its factorization.

1153656000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 1153656000 is about 33965.5119201816. The cubic root of 1153656000 is about 1048.7986259532.

The spelling of 1153656000 in words is "one billion, one hundred fifty-three million, six hundred fifty-six thousand".