1156106827741 has 4 divisors (see below), whose sum is σ = 1156320255132. Its totient is φ = 1155893400352.

The previous prime is 1156106827721. The next prime is 1156106827789. The reversal of 1156106827741 is 1477286016511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51970320900 + 1104136506841 = 227970^2 + 1050779^2 .

It is a cyclic number.

It is not a de Polignac number, because 1156106827741 - 2³¹ = 1153959344093 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156106827721) 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 3 ways as a sum of consecutive naturals, for example, 106705570 + ... + 106716403.

It is an arithmetic number, because the mean of its divisors is an integer number (289080063783).

Almost surely, 2^{1156106827741} is an apocalyptic number.

It is an amenable number.

1156106827741 is a deficient number, since it is larger than the sum of its proper divisors (213427391).

1156106827741 is an equidigital number, since it uses as much as digits as its factorization.

1156106827741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213427390.

The product of its (nonzero) digits is 564480, while the sum is 49.

The spelling of 1156106827741 in words is "one trillion, one hundred fifty-six billion, one hundred six million, eight hundred twenty-seven thousand, seven hundred forty-one".