1366404545 has 16 divisors (see below), whose sum is σ = 1790069760. Its totient is φ = 993014400.

The previous prime is 1366404527. The next prime is 1366404569. The reversal of 1366404545 is 5454046631.

It is not a de Polignac number, because 1366404545 - 2¹⁴ = 1366388161 is a prime.

It is a super-2 number, since 2×1366404545² = 3734122761193314050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1366404499 and 1366404508.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72461 + ... + 89349.

It is an arithmetic number, because the mean of its divisors is an integer number (111879360).

Almost surely, 2^1366404545 is an apocalyptic number.

It is an amenable number.

1366404545 is a deficient number, since it is larger than the sum of its proper divisors (423665215).

1366404545 is a wasteful number, since it uses less digits than its factorization.

1366404545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18376.

The product of its (nonzero) digits is 172800, while the sum is 38.

The square root of 1366404545 is about 36964.9096441477. The cubic root of 1366404545 is about 1109.6680946351.

The spelling of 1366404545 in words is "one billion, three hundred sixty-six million, four hundred four thousand, five hundred forty-five".