1366553160 has 640 divisors, whose sum is σ = 5808153600. Its totient is φ = 284497920.

The previous prime is 1366553141. The next prime is 1366553179. The reversal of 1366553160 is 613556631.

1366553160 is a `hidden beast` number, since 1 + 3 + 6 + 65 + 531 + 60 = 666.

It is an interprime number because it is at equal distance from previous prime (1366553141) and next prime (1366553179).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 44082345 + ... + 44082375.

It is an arithmetic number, because the mean of its divisors is an integer number (9075240).

Almost surely, 2^1366553160 is an apocalyptic number.

1366553160 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 1366553160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2904076800).

1366553160 is an abundant number, since it is smaller than the sum of its proper divisors (4441600440).

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

1366553160 is a wasteful number, since it uses less digits than its factorization.

1366553160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 1366553160 is about 36966.9198067678. The cubic root of 1366553160 is about 1109.7083236547.

The spelling of 1366553160 in words is "one billion, three hundred sixty-six million, five hundred fifty-three thousand, one hundred sixty".