61010000056 has 32 divisors (see below), whose sum is σ = 114872094000. Its totient is φ = 30377641216.

The previous prime is 61010000047. The next prime is 61010000057. The reversal of 61010000056 is 65000001016.

It is a junction number, because it is equal to n+sod(n) for n = 61009999988 and 61010000042.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61010000057) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2572380 + ... + 2595988.

Almost surely, 2^61010000056 is an apocalyptic number.

It is an amenable number.

61010000056 is a deficient number, since it is larger than the sum of its proper divisors (53862093944).

61010000056 is a wasteful number, since it uses less digits than its factorization.

61010000056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24951 (or 24947 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The spelling of 61010000056 in words is "sixty-one billion, ten million, fifty-six", and thus it is an aban number and an uban number.