53611346880 has 1680 divisors, whose sum is σ = 254282789376. Its totient is φ = 10590289920.

The previous prime is 53611346869. The next prime is 53611346909. The reversal of 53611346880 is 8864311635.

53611346880 is a `hidden beast` number, since 53 + 61 + 1 + 3 + 468 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (1680).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 280687585 + ... + 280687775.

Almost surely, 2^53611346880 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 53611346880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127141394688).

53611346880 is an abundant number, since it is smaller than the sum of its proper divisors (200671442496).

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

53611346880 is a wasteful number, since it uses less digits than its factorization.

53611346880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 53611346880 in words is "fifty-three billion, six hundred eleven million, three hundred forty-six thousand, eight hundred eighty".