1366680703338 has 24 divisors (see below), whose sum is σ = 2961197841888. Its totient is φ = 455551570152.

The previous prime is 1366680703319. The next prime is 1366680703357. The reversal of 1366680703338 is 8333070866631.

It is an interprime number because it is at equal distance from previous prime (1366680703319) and next prime (1366680703357).

It is a super-2 number, since 2×1366680703338² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 288945 + ... + 1678347.

It is an arithmetic number, because the mean of its divisors is an integer number (123383243412).

Almost surely, 2^{1366680703338} is an apocalyptic number.

1366680703338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1366680703338 is an abundant number, since it is smaller than the sum of its proper divisors (1594517138550).

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

1366680703338 is a wasteful number, since it uses less digits than its factorization.

1366680703338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444058 (or 1444055 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 54.

The spelling of 1366680703338 in words is "one trillion, three hundred sixty-six billion, six hundred eighty million, seven hundred three thousand, three hundred thirty-eight".