1366330531040 has 48 divisors (see below), whose sum is σ = 3228038993088. Its totient is φ = 546518140416.

The previous prime is 1366330531031. The next prime is 1366330531063. The reversal of 1366330531040 is 401350336631.

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, 7976534 + ... + 8146026.

It is an arithmetic number, because the mean of its divisors is an integer number (67250812356).

Almost surely, 2^{1366330531040} is an apocalyptic number.

1366330531040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1366330531040 is an abundant number, since it is smaller than the sum of its proper divisors (1861708462048).

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

1366330531040 is a wasteful number, since it uses less digits than its factorization.

1366330531040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219891 (or 219883 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 35.

Adding to 1366330531040 its reverse (401350336631), we get a palindrome (1767680867671).

The spelling of 1366330531040 in words is "one trillion, three hundred sixty-six billion, three hundred thirty million, five hundred thirty-one thousand, forty".