61010565012 has 36 divisors (see below), whose sum is σ = 159933047456. Its totient is φ = 20336854680.

The previous prime is 61010564999. The next prime is 61010565013. The reversal of 61010565012 is 21056501016.

It is a happy number.

61010565012 is a `hidden beast` number, since 6 + 1 + 0 + 1 + 0 + 5 + 650 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61010565013) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 31383064 + ... + 31385007.

Almost surely, 2^61010565012 is an apocalyptic number.

It is an amenable number.

61010565012 is an abundant number, since it is smaller than the sum of its proper divisors (98922482444).

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

61010565012 is a wasteful number, since it uses less digits than its factorization.

61010565012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62768090 (or 62768076 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The spelling of 61010565012 in words is "sixty-one billion, ten million, five hundred sixty-five thousand, twelve".