1550117340 has 216 divisors, whose sum is σ = 4967202240. Its totient is φ = 391080960.

The previous prime is 1550117339. The next prime is 1550117357. The reversal of 1550117340 is 437110551.

1550117340 is a `hidden beast` number, since 1 + 550 + 1 + 1 + 73 + 40 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 14221206 + ... + 14221314.

Almost surely, 2^1550117340 is an apocalyptic number.

1550117340 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 1550117340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2483601120).

1550117340 is an abundant number, since it is smaller than the sum of its proper divisors (3417084900).

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

1550117340 is a wasteful number, since it uses less digits than its factorization.

1550117340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 1550117340 is about 39371.5295613467. The cubic root of 1550117340 is about 1157.3237301690.

Adding to 1550117340 its reverse (437110551), we get a palindrome (1987227891).

The spelling of 1550117340 in words is "one billion, five hundred fifty million, one hundred seventeen thousand, three hundred forty".