61075484064 has 144 divisors (see below), whose sum is σ = 201860043840. Its totient is φ = 17154339840.

The previous prime is 61075484003. The next prime is 61075484111. The reversal of 61075484064 is 46048457016.

61075484064 is a `hidden beast` number, since 6 + 1 + 0 + 7 + 548 + 40 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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 23 ways as a sum of consecutive naturals, for example, 137797 + ... + 375684.

It is an arithmetic number, because the mean of its divisors is an integer number (1401805860).

Almost surely, 2^61075484064 is an apocalyptic number.

It is an amenable number.

61075484064 is an abundant number, since it is smaller than the sum of its proper divisors (140784559776).

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

61075484064 is a wasteful number, since it uses less digits than its factorization.

61075484064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513563 (or 513552 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 61075484064 in words is "sixty-one billion, seventy-five million, four hundred eighty-four thousand, sixty-four".