13161302550 has 96 divisors (see below), whose sum is σ = 39563717760. Its totient is φ = 3190615200.

The previous prime is 13161302549. The next prime is 13161302563. The reversal of 13161302550 is 5520316131.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 428292 + ... + 457991.

It is an arithmetic number, because the mean of its divisors is an integer number (412122060).

Almost surely, 2^13161302550 is an apocalyptic number.

13161302550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13161302550 is an abundant number, since it is smaller than the sum of its proper divisors (26402415210).

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

13161302550 is a wasteful number, since it uses less digits than its factorization.

13161302550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886315 (or 886304 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

Adding to 13161302550 its reverse (5520316131), we get a palindrome (18681618681).

The spelling of 13161302550 in words is "thirteen billion, one hundred sixty-one million, three hundred two thousand, five hundred fifty".