1153353121555 has 32 divisors (see below), whose sum is σ = 1478576332800. Its totient is φ = 861753648000.

The previous prime is 1153353121553. The next prime is 1153353121561. The reversal of 1153353121555 is 5551213533511.

It is not a de Polignac number, because 1153353121555 - 2¹ = 1153353121553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1153353121553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10513176 + ... + 10622314.

It is an arithmetic number, because the mean of its divisors is an integer number (46205510400).

Almost surely, 2^{1153353121555} is an apocalyptic number.

1153353121555 is a deficient number, since it is larger than the sum of its proper divisors (325223211245).

1153353121555 is a wasteful number, since it uses less digits than its factorization.

1153353121555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111555.

The product of its digits is 168750, while the sum is 40.

The spelling of 1153353121555 in words is "one trillion, one hundred fifty-three billion, three hundred fifty-three million, one hundred twenty-one thousand, five hundred fifty-five".