1157444564546 has 8 divisors (see below), whose sum is σ = 1736333353020. Its totient is φ = 578666780208.

The previous prime is 1157444564539. The next prime is 1157444564569. The reversal of 1157444564546 is 6454654447511.

It can be written as a sum of positive squares in 2 ways, for example, as 816382724521 + 341061840025 = 903539^2 + 584005^2 .

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

It is a super-2 number, since 2×1157444564546² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1157444564491 and 1157444564500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27724961 + ... + 27766676.

Almost surely, 2^{1157444564546} is an apocalyptic number.

1157444564546 is a deficient number, since it is larger than the sum of its proper divisors (578888788474).

1157444564546 is a wasteful number, since it uses less digits than its factorization.

1157444564546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55502068.

The product of its digits is 32256000, while the sum is 56.

The spelling of 1157444564546 in words is "one trillion, one hundred fifty-seven billion, four hundred forty-four million, five hundred sixty-four thousand, five hundred forty-six".