1366347222240 has 768 divisors, whose sum is σ = 5790199209984. Its totient is φ = 261559296000.

The previous prime is 1366347222217. The next prime is 1366347222269. The reversal of 1366347222240 is 422227436631.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 1366347222192 and 1366347222201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 270507715 + ... + 270512765.

It is an arithmetic number, because the mean of its divisors is an integer number (7539321888).

Almost surely, 2^{1366347222240} is an apocalyptic number.

1366347222240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1366347222240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2895099604992).

1366347222240 is an abundant number, since it is smaller than the sum of its proper divisors (4423851987744).

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

1366347222240 is a wasteful number, since it uses less digits than its factorization.

1366347222240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5663 (or 5655 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 42.

The spelling of 1366347222240 in words is "one trillion, three hundred sixty-six billion, three hundred forty-seven million, two hundred twenty-two thousand, two hundred forty".