1153525809640 has 16 divisors (see below), whose sum is σ = 2595433071780. Its totient is φ = 461410323840.

The previous prime is 1153525809581. The next prime is 1153525809673. The reversal of 1153525809640 is 469085253511.

It can be written as a sum of positive squares in 2 ways, for example, as 1099591320996 + 53934488644 = 1048614^2 + 232238^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14419072581 + ... + 14419072660.

Almost surely, 2^{1153525809640} is an apocalyptic number.

1153525809640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1153525809640 is an abundant number, since it is smaller than the sum of its proper divisors (1441907262140).

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

1153525809640 is a wasteful number, since it uses less digits than its factorization.

1153525809640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28838145252 (or 28838145248 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 49.

The spelling of 1153525809640 in words is "one trillion, one hundred fifty-three billion, five hundred twenty-five million, eight hundred nine thousand, six hundred forty".