55065156560 has 40 divisors (see below), whose sum is σ = 128198937600. Its totient is φ = 21996394112.

The previous prime is 55065156557. The next prime is 55065156577. The reversal of 55065156560 is 6565156055.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×55065156560² (a number of 22 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 403760 + ... + 522639.

It is an arithmetic number, because the mean of its divisors is an integer number (3204973440).

Almost surely, 2^55065156560 is an apocalyptic number.

It is an amenable number.

55065156560 is an abundant number, since it is smaller than the sum of its proper divisors (73133781040).

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

55065156560 is a wasteful number, since it uses less digits than its factorization.

55065156560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927155 (or 927149 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 44.

The spelling of 55065156560 in words is "fifty-five billion, sixty-five million, one hundred fifty-six thousand, five hundred sixty".