1663255314 has 72 divisors (see below), whose sum is σ = 4235517468. Its totient is φ = 470292480.

The previous prime is 1663255303. The next prime is 1663255337. The reversal of 1663255314 is 4135523661.

1663255314 is a `hidden beast` number, since 1 + 6 + 632 + 5 + 5 + 3 + 14 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1617246225 + 46009089 = 40215^2 + 6783^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 75834 + ... + 95274.

Almost surely, 2^1663255314 is an apocalyptic number.

1663255314 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1663255314, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2117758734).

1663255314 is an abundant number, since it is smaller than the sum of its proper divisors (2572262154).

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

1663255314 is a wasteful number, since it uses less digits than its factorization.

1663255314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19560 (or 19550 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 1663255314 is about 40783.0272785138. The cubic root of 1663255314 is about 1184.8216278012.

Adding to 1663255314 its reverse (4135523661), we get a palindrome (5798778975).

The spelling of 1663255314 in words is "one billion, six hundred sixty-three million, two hundred fifty-five thousand, three hundred fourteen".