13661234125 has 32 divisors (see below), whose sum is σ = 21256185600. Its totient is φ = 8516088000.

The previous prime is 13661234113. The next prime is 13661234149. The reversal of 13661234125 is 52143216631.

It is not a de Polignac number, because 13661234125 - 2¹³ = 13661225933 is a prime.

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, 700050 + ... + 719299.

It is an arithmetic number, because the mean of its divisors is an integer number (664255800).

Almost surely, 2^13661234125 is an apocalyptic number.

It is an amenable number.

13661234125 is a deficient number, since it is larger than the sum of its proper divisors (7594951475).

13661234125 is a wasteful number, since it uses less digits than its factorization.

13661234125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419382 (or 1419372 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The spelling of 13661234125 in words is "thirteen billion, six hundred sixty-one million, two hundred thirty-four thousand, one hundred twenty-five".