1366551742055 has 8 divisors (see below), whose sum is σ = 1640164736400. Its totient is φ = 1093039629696.

The previous prime is 1366551742051. The next prime is 1366551742057. The reversal of 1366551742055 is 5502471556631.

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 1366551742055 - 2² = 1366551742051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1366551741994 and 1366551742012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366551742051) 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, 25190690 + ... + 25244879.

It is an arithmetic number, because the mean of its divisors is an integer number (205020592050).

Almost surely, 2^{1366551742055} is an apocalyptic number.

1366551742055 is a deficient number, since it is larger than the sum of its proper divisors (273612994345).

1366551742055 is an equidigital number, since it uses as much as digits as its factorization.

1366551742055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50440993.

The product of its (nonzero) digits is 3780000, while the sum is 50.

The spelling of 1366551742055 in words is "one trillion, three hundred sixty-six billion, five hundred fifty-one million, seven hundred forty-two thousand, fifty-five".