1155405553202 has 4 divisors (see below), whose sum is σ = 1733108329806. Its totient is φ = 577702776600.

The previous prime is 1155405553199. The next prime is 1155405553217. The reversal of 1155405553202 is 2023555045511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 790977218161 + 364428335041 = 889369^2 + 603679^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 288851388299 + ... + 288851388302.

Almost surely, 2^{1155405553202} is an apocalyptic number.

1155405553202 is a deficient number, since it is larger than the sum of its proper divisors (577702776604).

1155405553202 is an equidigital number, since it uses as much as digits as its factorization.

1155405553202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577702776603.

The product of its (nonzero) digits is 150000, while the sum is 38.

The spelling of 1155405553202 in words is "one trillion, one hundred fifty-five billion, four hundred five million, five hundred fifty-three thousand, two hundred two".