13316436550 has 12 divisors (see below), whose sum is σ = 24768572076. Its totient is φ = 5326574600.

The previous prime is 13316436527. The next prime is 13316436557. The reversal of 13316436550 is 5563461331.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13316436557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 133164316 + ... + 133164415.

It is an arithmetic number, because the mean of its divisors is an integer number (2064047673).

Almost surely, 2^13316436550 is an apocalyptic number.

13316436550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13316436550 is a deficient number, since it is larger than the sum of its proper divisors (11452135526).

13316436550 is a wasteful number, since it uses less digits than its factorization.

13316436550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266328743 (or 266328738 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 37.

Adding to 13316436550 its reverse (5563461331), we get a palindrome (18879897881).

The spelling of 13316436550 in words is "thirteen billion, three hundred sixteen million, four hundred thirty-six thousand, five hundred fifty".