1366623024390 has 640 divisors, whose sum is σ = 4343356588032. Its totient is φ = 305122775040.

The previous prime is 1366623024379. The next prime is 1366623024413. The reversal of 1366623024390 is 934203266631.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 2125385409 + ... + 2125386051.

Almost surely, 2^{1366623024390} is an apocalyptic number.

1366623024390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1366623024390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2171678294016).

1366623024390 is an abundant number, since it is smaller than the sum of its proper divisors (2976733563642).

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

1366623024390 is a wasteful number, since it uses less digits than its factorization.

1366623024390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106 (or 1097 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 45.

The spelling of 1366623024390 in words is "one trillion, three hundred sixty-six billion, six hundred twenty-three million, twenty-four thousand, three hundred ninety".