1155550330434 has 32 divisors (see below), whose sum is σ = 2317207720896. Its totient is φ = 384165840960.

The previous prime is 1155550330423. The next prime is 1155550330463. The reversal of 1155550330434 is 4340330555511.

It is a super-2 number, since 2×1155550330434² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1155550330392 and 1155550330401.

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 in 15 ways as a sum of consecutive naturals, for example, 23025549 + ... + 23075679.

It is an arithmetic number, because the mean of its divisors is an integer number (72412741278).

Almost surely, 2^{1155550330434} is an apocalyptic number.

1155550330434 is an abundant number, since it is smaller than the sum of its proper divisors (1161657390462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1155550330434 is a wasteful number, since it uses less digits than its factorization.

1155550330434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60210.

The product of its (nonzero) digits is 270000, while the sum is 39.

Adding to 1155550330434 its reverse (4340330555511), we get a palindrome (5495880885945).

The spelling of 1155550330434 in words is "one trillion, one hundred fifty-five billion, five hundred fifty million, three hundred thirty thousand, four hundred thirty-four".