1550366006461 has 4 divisors (see below), whose sum is σ = 1555962995932. Its totient is φ = 1544769016992.

The previous prime is 1550366006393. The next prime is 1550366006543. The reversal of 1550366006461 is 1646006630551.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 345354853561 + 1205011152900 = 587669^2 + 1097730^2 .

It is a cyclic number.

It is not a de Polignac number, because 1550366006461 - 2⁷ = 1550366006333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1550366076461) 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 3 ways as a sum of consecutive naturals, for example, 2798494320 + ... + 2798494873.

It is an arithmetic number, because the mean of its divisors is an integer number (388990748983).

Almost surely, 2^{1550366006461} is an apocalyptic number.

It is an amenable number.

1550366006461 is a deficient number, since it is larger than the sum of its proper divisors (5596989471).

1550366006461 is an equidigital number, since it uses as much as digits as its factorization.

1550366006461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5596989470.

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

The spelling of 1550366006461 in words is "one trillion, five hundred fifty billion, three hundred sixty-six million, six thousand, four hundred sixty-one".