1366005500 has 48 divisors (see below), whose sum is σ = 2988183744. Its totient is φ = 545518400.

The previous prime is 1366005499. The next prime is 1366005521. The reversal of 1366005500 is 55006631.

It is a self number, because there is not a number n which added to its sum of digits gives 1366005500.

It is a congruent number.

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, 369662 + ... + 373338.

It is an arithmetic number, because the mean of its divisors is an integer number (62253828).

Almost surely, 2^1366005500 is an apocalyptic number.

1366005500 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 1366005500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1494091872).

1366005500 is an abundant number, since it is smaller than the sum of its proper divisors (1622178244).

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

1366005500 is a wasteful number, since it uses less digits than its factorization.

1366005500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4439 (or 4427 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 1366005500 is about 36959.5116309726. The cubic root of 1366005500 is about 1109.5600615690.

The spelling of 1366005500 in words is "one billion, three hundred sixty-six million, five thousand, five hundred".