61058808560 has 20 divisors (see below), whose sum is σ = 141961730088. Its totient is φ = 24423523392.

The previous prime is 61058808529. The next prime is 61058808563. The reversal of 61058808560 is 6580885016.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61058808563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381617474 + ... + 381617633.

Almost surely, 2^61058808560 is an apocalyptic number.

It is an amenable number.

61058808560 is an abundant number, since it is smaller than the sum of its proper divisors (80902921528).

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

61058808560 is a wasteful number, since it uses less digits than its factorization.

61058808560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763235120 (or 763235114 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 47.

The spelling of 61058808560 in words is "sixty-one billion, fifty-eight million, eight hundred eight thousand, five hundred sixty".