61615560565500 has 96 divisors (see below), whose sum is σ = 179428387494720. Its totient is φ = 16430461286400.

The previous prime is 61615560565421. The next prime is 61615560565553. The reversal of 61615560565500 is 556506551616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73094424 + ... + 73932576.

It is an arithmetic number, because the mean of its divisors is an integer number (1869045703070).

Almost surely, 2^{61615560565500} is an apocalyptic number.

61615560565500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61615560565500 is an abundant number, since it is smaller than the sum of its proper divisors (117812826929220).

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

61615560565500 is a wasteful number, since it uses less digits than its factorization.

61615560565500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887184 (or 887172 counting only the distinct ones).

The product of its (nonzero) digits is 4050000, while the sum is 51.

The spelling of 61615560565500 in words is "sixty-one trillion, six hundred fifteen billion, five hundred sixty million, five hundred sixty-five thousand, five hundred".