1366621016 has 8 divisors (see below), whose sum is σ = 2562414420. Its totient is φ = 683310504.

The previous prime is 1366620991. The next prime is 1366621063. The reversal of 1366621016 is 6101266631.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85413806 + ... + 85413821.

Almost surely, 2^1366621016 is an apocalyptic number.

It is an amenable number.

1366621016 is a deficient number, since it is larger than the sum of its proper divisors (1195793404).

1366621016 is a wasteful number, since it uses less digits than its factorization.

1366621016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170827633 (or 170827629 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 1366621016 is about 36967.8375889096. The cubic root of 1366621016 is about 1109.7266908196.

Adding to 1366621016 its reverse (6101266631), we get a palindrome (7467887647).

The spelling of 1366621016 in words is "one billion, three hundred sixty-six million, six hundred twenty-one thousand, sixteen".