13661101404 has 72 divisors (see below), whose sum is σ = 35336927808. Its totient is φ = 4447971840.

The previous prime is 13661101397. The next prime is 13661101423. The reversal of 13661101404 is 40410116631.

13661101404 is a `hidden beast` number, since 1 + 3 + 6 + 611 + 0 + 1 + 40 + 4 = 666.

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 23 ways as a sum of consecutive naturals, for example, 873784 + ... + 889280.

It is an arithmetic number, because the mean of its divisors is an integer number (490790664).

Almost surely, 2^13661101404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13661101404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17668463904).

13661101404 is an abundant number, since it is smaller than the sum of its proper divisors (21675826404).

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

13661101404 is a wasteful number, since it uses less digits than its factorization.

13661101404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16075 (or 16070 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The spelling of 13661101404 in words is "thirteen billion, six hundred sixty-one million, one hundred one thousand, four hundred four".