1165541144234 has 16 divisors (see below), whose sum is σ = 1773240206400. Its totient is φ = 574463893920.

The previous prime is 1165541144219. The next prime is 1165541144279. The reversal of 1165541144234 is 4324411455611.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1165541144191 and 1165541144200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128897 + ... + 1532219.

It is an arithmetic number, because the mean of its divisors is an integer number (110827512900).

Almost surely, 2^{1165541144234} is an apocalyptic number.

1165541144234 is a deficient number, since it is larger than the sum of its proper divisors (607699062166).

1165541144234 is a wasteful number, since it uses less digits than its factorization.

1165541144234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409245.

The product of its digits is 230400, while the sum is 41.

Adding to 1165541144234 its reverse (4324411455611), we get a palindrome (5489952599845).

The spelling of 1165541144234 in words is "one trillion, one hundred sixty-five billion, five hundred forty-one million, one hundred forty-four thousand, two hundred thirty-four".