1153609665898 has 8 divisors (see below), whose sum is σ = 1731144330720. Its totient is φ = 576561555660.

The previous prime is 1153609665893. The next prime is 1153609665907. The reversal of 1153609665898 is 8985669063511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1153609665898² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1153609665893) 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, 121632718 + ... + 121642201.

It is an arithmetic number, because the mean of its divisors is an integer number (216393041340).

Almost surely, 2^{1153609665898} is an apocalyptic number.

1153609665898 is a deficient number, since it is larger than the sum of its proper divisors (577534664822).

1153609665898 is a wasteful number, since it uses less digits than its factorization.

1153609665898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243277292.

The product of its (nonzero) digits is 83980800, while the sum is 67.

The spelling of 1153609665898 in words is "one trillion, one hundred fifty-three billion, six hundred nine million, six hundred sixty-five thousand, eight hundred ninety-eight".