1366420516513 has 8 divisors (see below), whose sum is σ = 1471545734400. Its totient is φ = 1261297576848.

The previous prime is 1366420516499. The next prime is 1366420516519. The reversal of 1366420516513 is 3156150246631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1366420516513 - 2⁵ = 1366420516481 is a prime.

It is a super-3 number, since 3×1366420516513³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1366420516513.

It is not an unprimeable number, because it can be changed into a prime (1366420516519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 797718 + ... + 1835536.

It is an arithmetic number, because the mean of its divisors is an integer number (183943216800).

Almost surely, 2^{1366420516513} is an apocalyptic number.

1366420516513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1366420516513 is a deficient number, since it is larger than the sum of its proper divisors (105125217887).

1366420516513 is a wasteful number, since it uses less digits than its factorization.

1366420516513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139111.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 1366420516513 in words is "one trillion, three hundred sixty-six billion, four hundred twenty million, five hundred sixteen thousand, five hundred thirteen".