1550104431320 has 128 divisors (see below), whose sum is σ = 3785056819200. Its totient is φ = 569748681216.

The previous prime is 1550104431277. The next prime is 1550104431413. The reversal of 1550104431320 is 231344010551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2400947 + ... + 2977373.

It is an arithmetic number, because the mean of its divisors is an integer number (29570756400).

Almost surely, 2^{1550104431320} is an apocalyptic number.

1550104431320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1550104431320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1892528409600).

1550104431320 is an abundant number, since it is smaller than the sum of its proper divisors (2234952387880).

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

1550104431320 is a wasteful number, since it uses less digits than its factorization.

1550104431320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576577 (or 576573 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 1550104431320 its reverse (231344010551), we get a palindrome (1781448441871).

The spelling of 1550104431320 in words is "one trillion, five hundred fifty billion, one hundred four million, four hundred thirty-one thousand, three hundred twenty".