1340145125566 has 40 divisors (see below), whose sum is σ = 2189149513344. Its totient is φ = 615285141120.

The previous prime is 1340145125509. The next prime is 1340145125569. The reversal of 1340145125566 is 6655215410431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340145125569) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10848886 + ... + 10971718.

Almost surely, 2^{1340145125566} is an apocalyptic number.

1340145125566 is a deficient number, since it is larger than the sum of its proper divisors (849004387778).

1340145125566 is an equidigital number, since it uses as much as digits as its factorization.

1340145125566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123078 (or 123039 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 1340145125566 in words is "one trillion, three hundred forty billion, one hundred forty-five million, one hundred twenty-five thousand, five hundred sixty-six".