55124918640 has 180 divisors, whose sum is σ = 203487960312. Its totient is φ = 13363595520.

The previous prime is 55124918603. The next prime is 55124918657. The reversal of 55124918640 is 4681942155.

55124918640 is a `hidden beast` number, since 5 + 512 + 4 + 91 + 8 + 6 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (180).

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 229254 + ... + 403493.

Almost surely, 2^55124918640 is an apocalyptic number.

It is an amenable number.

55124918640 is an abundant number, since it is smaller than the sum of its proper divisors (148363041672).

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

55124918640 is a wasteful number, since it uses less digits than its factorization.

55124918640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632788 (or 632768 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 55124918640 in words is "fifty-five billion, one hundred twenty-four million, nine hundred eighteen thousand, six hundred forty".