13351251056 has 160 divisors (see below), whose sum is σ = 32172940800. Its totient is φ = 5276759040.

The previous prime is 13351251049. The next prime is 13351251077. The reversal of 13351251056 is 65015215331.

It is a super-2 number, since 2×13351251056² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8563205 + ... + 8564763.

It is an arithmetic number, because the mean of its divisors is an integer number (201080880).

Almost surely, 2^13351251056 is an apocalyptic number.

13351251056 is a gapful number since it is divisible by the number (16) 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 13351251056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16086470400).

13351251056 is an abundant number, since it is smaller than the sum of its proper divisors (18821689744).

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

13351251056 is a wasteful number, since it uses less digits than its factorization.

13351251056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807 (or 1801 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 32.

Adding to 13351251056 its reverse (65015215331), we get a palindrome (78366466387).

The spelling of 13351251056 in words is "thirteen billion, three hundred fifty-one million, two hundred fifty-one thousand, fifty-six".