13661234124 has 12 divisors (see below), whose sum is σ = 31876212984. Its totient is φ = 4553744704.

The previous prime is 13661234113. The next prime is 13661234149. The reversal of 13661234124 is 42143216631.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569218077 + ... + 569218100.

It is an arithmetic number, because the mean of its divisors is an integer number (2656351082).

Almost surely, 2^13661234124 is an apocalyptic number.

It is an amenable number.

13661234124 is an abundant number, since it is smaller than the sum of its proper divisors (18214978860).

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

13661234124 is a wasteful number, since it uses less digits than its factorization.

13661234124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138436184 (or 1138436182 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The spelling of 13661234124 in words is "thirteen billion, six hundred sixty-one million, two hundred thirty-four thousand, one hundred twenty-four".