1550131205345 has 16 divisors (see below), whose sum is σ = 1920879491520. Its totient is φ = 1200152769984.

The previous prime is 1550131205327. The next prime is 1550131205369. The reversal of 1550131205345 is 5435021310551.

It is a cyclic number.

It is not a de Polignac number, because 1550131205345 - 2⁸ = 1550131205089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33049559 + ... + 33096428.

It is an arithmetic number, because the mean of its divisors is an integer number (120054968220).

Almost surely, 2^{1550131205345} is an apocalyptic number.

It is an amenable number.

1550131205345 is a deficient number, since it is larger than the sum of its proper divisors (370748286175).

1550131205345 is a wasteful number, since it uses less digits than its factorization.

1550131205345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66146144.

The product of its (nonzero) digits is 45000, while the sum is 35.

Adding to 1550131205345 its reverse (5435021310551), we get a palindrome (6985152515896).

The spelling of 1550131205345 in words is "one trillion, five hundred fifty billion, one hundred thirty-one million, two hundred five thousand, three hundred forty-five".