1366421143000 has 64 divisors (see below), whose sum is σ = 3257754383520. Its totient is φ = 536255824000.

The previous prime is 1366421142887. The next prime is 1366421143007. The reversal of 1366421143000 is 3411246631.

It is a happy number.

It is a super-3 number, since 3×1366421143000³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366421143007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12837766 + ... + 12943765.

Almost surely, 2^{1366421143000} is an apocalyptic number.

1366421143000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1366421143000 is an abundant number, since it is smaller than the sum of its proper divisors (1891333240520).

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

1366421143000 is a wasteful number, since it uses less digits than its factorization.

1366421143000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25781605 (or 25781591 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 1366421143000 its reverse (3411246631), we get a palindrome (1369832389631).

The spelling of 1366421143000 in words is "one trillion, three hundred sixty-six billion, four hundred twenty-one million, one hundred forty-three thousand".