1155554865346 has 16 divisors (see below), whose sum is σ = 2021378774400. Its totient is φ = 495237799140.

The previous prime is 1155554865313. The next prime is 1155554865359. The reversal of 1155554865346 is 6435684555511.

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 7 ways as a sum of consecutive naturals, for example, 842240470 + ... + 842241841.

It is an arithmetic number, because the mean of its divisors is an integer number (126336173400).

Almost surely, 2^{1155554865346} is an apocalyptic number.

1155554865346 is a deficient number, since it is larger than the sum of its proper divisors (865823909054).

1155554865346 is an equidigital number, since it uses as much as digits as its factorization.

1155554865346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684482334 (or 1684482320 counting only the distinct ones).

The product of its digits is 43200000, while the sum is 58.

The spelling of 1155554865346 in words is "one trillion, one hundred fifty-five billion, five hundred fifty-four million, eight hundred sixty-five thousand, three hundred forty-six".