13312465650 has 144 divisors (see below), whose sum is σ = 39848485248. Its totient is φ = 3158544000.

The previous prime is 13312465633. The next prime is 13312465667. The reversal of 13312465650 is 5656421331.

13312465650 is a `hidden beast` number, since 133 + 1 + 2 + 465 + 65 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (13312465633) and next prime (13312465667).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 204040 + ... + 261260.

It is an arithmetic number, because the mean of its divisors is an integer number (276725592).

Almost surely, 2^13312465650 is an apocalyptic number.

13312465650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13312465650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19924242624).

13312465650 is an abundant number, since it is smaller than the sum of its proper divisors (26536019598).

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

13312465650 is a wasteful number, since it uses less digits than its factorization.

13312465650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57297 (or 57289 counting only the distinct ones).

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

Adding to 13312465650 its reverse (5656421331), we get a palindrome (18968886981).

The spelling of 13312465650 in words is "thirteen billion, three hundred twelve million, four hundred sixty-five thousand, six hundred fifty".