13665142148 has 36 divisors (see below), whose sum is σ = 27842119452. Its totient is φ = 5851480320.

The previous prime is 13665142091. The next prime is 13665142187. The reversal of 13665142148 is 84124156631.

It can be written as a sum of positive squares in 2 ways, for example, as 10453426564 + 3211715584 = 102242^2 + 56672^2 .

It is a super-2 number, since 2×13665142148² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204608 + ... + 263048.

It is an arithmetic number, because the mean of its divisors is an integer number (773392207).

Almost surely, 2^13665142148 is an apocalyptic number.

It is an amenable number.

13665142148 is an abundant number, since it is smaller than the sum of its proper divisors (14176977304).

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

13665142148 is a wasteful number, since it uses less digits than its factorization.

13665142148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59652 (or 59643 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

Adding to 13665142148 its reverse (84124156631), we get a palindrome (97789298779).

The spelling of 13665142148 in words is "thirteen billion, six hundred sixty-five million, one hundred forty-two thousand, one hundred forty-eight".