13210634550 has 96 divisors (see below), whose sum is σ = 35207782272. Its totient is φ = 3266081280.

The previous prime is 13210634471. The next prime is 13210634579. The reversal of 13210634550 is 5543601231.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 132189 + ... + 209511.

It is an arithmetic number, because the mean of its divisors is an integer number (366747732).

Almost surely, 2^13210634550 is an apocalyptic number.

13210634550 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 13210634550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17603891136).

13210634550 is an abundant number, since it is smaller than the sum of its proper divisors (21997147722).

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

13210634550 is a wasteful number, since it uses less digits than its factorization.

13210634550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77422 (or 77417 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 13210634550 in words is "thirteen billion, two hundred ten million, six hundred thirty-four thousand, five hundred fifty".