1366516005 has 32 divisors (see below), whose sum is σ = 2363721600. Its totient is φ = 671784192.

The previous prime is 1366516003. The next prime is 1366516007. The reversal of 1366516005 is 5006156631.

It is an interprime number because it is at equal distance from previous prime (1366516003) and next prime (1366516007).

It is not a de Polignac number, because 1366516005 - 2¹ = 1366516003 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366516001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54250 + ... + 75339.

It is an arithmetic number, because the mean of its divisors is an integer number (73866300).

Almost surely, 2^1366516005 is an apocalyptic number.

1366516005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1366516005 is a deficient number, since it is larger than the sum of its proper divisors (997205595).

1366516005 is a wasteful number, since it uses less digits than its factorization.

1366516005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129653.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 1366516005 is about 36966.4172594532. The cubic root of 1366516005 is about 1109.6982663349.

The spelling of 1366516005 in words is "one billion, three hundred sixty-six million, five hundred sixteen thousand, five".