1366071345 has 16 divisors (see below), whose sum is σ = 2428571520. Its totient is φ = 728571312.

The previous prime is 1366071341. The next prime is 1366071347. The reversal of 1366071345 is 5431706631.

1366071345 is a `hidden beast` number, since 1 + 3 + 6 + 607 + 1 + 3 + 45 = 666.

It is not a de Polignac number, because 1366071345 - 2² = 1366071341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1366071341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5059389 + ... + 5059658.

It is an arithmetic number, because the mean of its divisors is an integer number (151785720).

Almost surely, 2^1366071345 is an apocalyptic number.

1366071345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1366071345 is a deficient number, since it is larger than the sum of its proper divisors (1062500175).

1366071345 is a wasteful number, since it uses less digits than its factorization.

1366071345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10119061 (or 10119055 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 1366071345 is about 36960.4023922900. The cubic root of 1366071345 is about 1109.5778891713.

Adding to 1366071345 its reverse (5431706631), we get a palindrome (6797777976).

The spelling of 1366071345 in words is "one billion, three hundred sixty-six million, seventy-one thousand, three hundred forty-five".