1550211100144 has 40 divisors (see below), whose sum is σ = 3433778974080. Its totient is φ = 664149989568.

The previous prime is 1550211100127. The next prime is 1550211100183. The reversal of 1550211100144 is 4410011120551.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2025574 + ... + 2683909.

It is an arithmetic number, because the mean of its divisors is an integer number (85844474352).

Almost surely, 2^{1550211100144} is an apocalyptic number.

1550211100144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1550211100144 is an abundant number, since it is smaller than the sum of its proper divisors (1883567873936).

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

1550211100144 is a wasteful number, since it uses less digits than its factorization.

1550211100144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4712437 (or 4712431 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 25.

Adding to 1550211100144 its reverse (4410011120551), we get a palindrome (5960222220695).

The spelling of 1550211100144 in words is "one trillion, five hundred fifty billion, two hundred eleven million, one hundred thousand, one hundred forty-four".