1366323246225 has 240 divisors, whose sum is σ = 2967032597760. Its totient is φ = 608543539200.

The previous prime is 1366323246217. The next prime is 1366323246247. The reversal of 1366323246225 is 5226423236631.

It is a happy number.

1366323246225 is a `hidden beast` number, since 1 + 3 + 6 + 632 + 3 + 2 + 4 + 6 + 2 + 2 + 5 = 666.

It is not a de Polignac number, because 1366323246225 - 2³ = 1366323246217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 670093756 + ... + 670095794.

It is an arithmetic number, because the mean of its divisors is an integer number (12362635824).

Almost surely, 2^{1366323246225} is an apocalyptic number.

1366323246225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1366323246225 is an abundant number, since it is smaller than the sum of its proper divisors (1600709351535).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1366323246225 is a wasteful number, since it uses less digits than its factorization.

1366323246225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3262 (or 3248 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 45.

The spelling of 1366323246225 in words is "one trillion, three hundred sixty-six billion, three hundred twenty-three million, two hundred forty-six thousand, two hundred twenty-five".