1366325616 has 40 divisors (see below), whose sum is σ = 3549415680. Its totient is φ = 452894656.

The previous prime is 1366325561. The next prime is 1366325621. The reversal of 1366325616 is 6165236631.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70920 + ... + 88103.

It is an arithmetic number, because the mean of its divisors is an integer number (88735392).

Almost surely, 2^1366325616 is an apocalyptic number.

1366325616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1366325616 is an abundant number, since it is smaller than the sum of its proper divisors (2183090064).

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

1366325616 is a wasteful number, since it uses less digits than its factorization.

1366325616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159213 (or 159207 counting only the distinct ones).

The product of its digits is 116640, while the sum is 39.

The square root of 1366325616 is about 36963.8420081030. The cubic root of 1366325616 is about 1109.6467279323.

The spelling of 1366325616 in words is "one billion, three hundred sixty-six million, three hundred twenty-five thousand, six hundred sixteen".