61080663860 has 48 divisors (see below), whose sum is σ = 128690856000. Its totient is φ = 24352120320.

The previous prime is 61080663841. The next prime is 61080663923. The reversal of 61080663860 is 6836608016.

It is a congruent number.

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, 8788907 + ... + 8795853.

It is an arithmetic number, because the mean of its divisors is an integer number (2681059500).

Almost surely, 2^61080663860 is an apocalyptic number.

It is an amenable number.

61080663860 is an abundant number, since it is smaller than the sum of its proper divisors (67610192140).

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

61080663860 is a wasteful number, since it uses less digits than its factorization.

61080663860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8336 (or 8334 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 61080663860 in words is "sixty-one billion, eighty million, six hundred sixty-three thousand, eight hundred sixty".