55061510660 has 48 divisors (see below), whose sum is σ = 125359542000. Its totient is φ = 20193944064.

The previous prime is 55061510657. The next prime is 55061510671. The reversal of 55061510660 is 6601516055.

It can be written as a sum of positive squares in 8 ways, for example, as 10564139524 + 44497371136 = 102782^2 + 210944^2 .

It is a super-2 number, since 2×55061510660² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55061510660.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 671915 + ... + 749394.

It is an arithmetic number, because the mean of its divisors is an integer number (2611657125).

Almost surely, 2^55061510660 is an apocalyptic number.

It is an amenable number.

55061510660 is an abundant number, since it is smaller than the sum of its proper divisors (70298031340).

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

55061510660 is a wasteful number, since it uses less digits than its factorization.

55061510660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421480 (or 1421478 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 55061510660 in words is "fifty-five billion, sixty-one million, five hundred ten thousand, six hundred sixty".