1366871616 has 336 divisors, whose sum is σ = 4550420160. Its totient is φ = 388362240.

The previous prime is 1366871603. The next prime is 1366871629. The reversal of 1366871616 is 6161786631.

It is an interprime number because it is at equal distance from previous prime (1366871603) and next prime (1366871629).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7900906 + ... + 7901078.

Almost surely, 2^1366871616 is an apocalyptic number.

1366871616 is a gapful number since it is divisible by the number (16) 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 1366871616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2275210080).

1366871616 is an abundant number, since it is smaller than the sum of its proper divisors (3183548544).

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

1366871616 is a wasteful number, since it uses less digits than its factorization.

1366871616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 261 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 1366871616 is about 36971.2268663078. The cubic root of 1366871616 is about 1109.7945176003.

The spelling of 1366871616 in words is "one billion, three hundred sixty-six million, eight hundred seventy-one thousand, six hundred sixteen".