1156344231066 has 8 divisors (see below), whose sum is σ = 2312688462144. Its totient is φ = 385448077020.

The previous prime is 1156344231061. The next prime is 1156344231067. The reversal of 1156344231066 is 6601324436511.

It is a happy number.

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

1156344231066 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1156344231061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96362019250 + ... + 96362019261.

It is an arithmetic number, because the mean of its divisors is an integer number (289086057768).

Almost surely, 2^{1156344231066} is an apocalyptic number.

1156344231066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1156344231066 is a wasteful number, since it uses less digits than its factorization.

1156344231066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192724038516.

The product of its (nonzero) digits is 311040, while the sum is 42.

Adding to 1156344231066 its reverse (6601324436511), we get a palindrome (7757668667577).

The spelling of 1156344231066 in words is "one trillion, one hundred fifty-six billion, three hundred forty-four million, two hundred thirty-one thousand, sixty-six".