1155497549843 has 8 divisors (see below), whose sum is σ = 1422150830688. Its totient is φ = 914239819584.

The previous prime is 1155497549831. The next prime is 1155497549851. The reversal of 1155497549843 is 3489457945511.

It is a happy number.

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

It is not a de Polignac number, because 1155497549843 - 2¹² = 1155497545747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1155497549843.

It is not an unprimeable number, because it can be changed into a prime (1155497546843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6348887546 + ... + 6348887727.

It is an arithmetic number, because the mean of its divisors is an integer number (177768853836).

Almost surely, 2^{1155497549843} is an apocalyptic number.

1155497549843 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1155497549843 is a deficient number, since it is larger than the sum of its proper divisors (266653280845).

1155497549843 is a wasteful number, since it uses less digits than its factorization.

1155497549843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12697775293.

The product of its digits is 108864000, while the sum is 65.

The spelling of 1155497549843 in words is "one trillion, one hundred fifty-five billion, four hundred ninety-seven million, five hundred forty-nine thousand, eight hundred forty-three".