53661540184 has 16 divisors (see below), whose sum is σ = 114989014800. Its totient is φ = 22997802912.

The previous prime is 53661540157. The next prime is 53661540203. The reversal of 53661540184 is 48104516635.

It is a self number, because there is not a number n which added to its sum of digits gives 53661540184.

It is a congruent number.

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, 479120839 + ... + 479120950.

It is an arithmetic number, because the mean of its divisors is an integer number (7186813425).

Almost surely, 2^53661540184 is an apocalyptic number.

It is an amenable number.

53661540184 is an abundant number, since it is smaller than the sum of its proper divisors (61327474616).

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

53661540184 is a wasteful number, since it uses less digits than its factorization.

53661540184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958241802 (or 958241798 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 53661540184 in words is "fifty-three billion, six hundred sixty-one million, five hundred forty thousand, one hundred eighty-four".