1155303400215 has 16 divisors (see below), whose sum is σ = 1857246039936. Its totient is φ = 613241613600.

The previous prime is 1155303400211. The next prime is 1155303400241. The reversal of 1155303400215 is 5120043035511.

It is not a de Polignac number, because 1155303400215 - 2² = 1155303400211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155303400211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182509221 + ... + 182515550.

It is an arithmetic number, because the mean of its divisors is an integer number (116077877496).

Almost surely, 2^{1155303400215} is an apocalyptic number.

1155303400215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1155303400215 is a deficient number, since it is larger than the sum of its proper divisors (701942639721).

1155303400215 is a wasteful number, since it uses less digits than its factorization.

1155303400215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365024990.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 1155303400215 its reverse (5120043035511), we get a palindrome (6275346435726).

The spelling of 1155303400215 in words is "one trillion, one hundred fifty-five billion, three hundred three million, four hundred thousand, two hundred fifteen".