1155344338281 has 8 divisors (see below), whose sum is σ = 1760524705984. Its totient is φ = 660196764720.

The previous prime is 1155344338177. The next prime is 1155344338301. The reversal of 1155344338281 is 1828334435511.

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

It is not a de Polignac number, because 1155344338281 - 2²⁵ = 1155310783849 is a prime.

It is a super-2 number, since 2×1155344338281² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1155344338281.

It is not an unprimeable number, because it can be changed into a prime (1155344334281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27508198510 + ... + 27508198551.

It is an arithmetic number, because the mean of its divisors is an integer number (220065588248).

Almost surely, 2^{1155344338281} is an apocalyptic number.

It is an amenable number.

1155344338281 is a deficient number, since it is larger than the sum of its proper divisors (605180367703).

1155344338281 is an equidigital number, since it uses as much as digits as its factorization.

1155344338281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55016397071.

The product of its digits is 1382400, while the sum is 48.

The spelling of 1155344338281 in words is "one trillion, one hundred fifty-five billion, three hundred forty-four million, three hundred thirty-eight thousand, two hundred eighty-one".