53661704292 has 144 divisors (see below), whose sum is σ = 157522240512. Its totient is φ = 15085586880.

The previous prime is 53661704281. The next prime is 53661704293. The reversal of 53661704292 is 29240716635.

53661704292 is a `hidden beast` number, since 5 + 3 + 6 + 617 + 0 + 4 + 29 + 2 = 666.

53661704292 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (53661704293) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9784183 + ... + 9789665.

It is an arithmetic number, because the mean of its divisors is an integer number (1093904448).

Almost surely, 2^53661704292 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 53661704292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78761120256).

53661704292 is an abundant number, since it is smaller than the sum of its proper divisors (103860536220).

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

53661704292 is a wasteful number, since it uses less digits than its factorization.

53661704292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6118 (or 6113 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 53661704292 in words is "fifty-three billion, six hundred sixty-one million, seven hundred four thousand, two hundred ninety-two".