61055440117320 has 64 divisors (see below), whose sum is σ = 199817804024640. Its totient is φ = 14801318816000.

The previous prime is 61055440117261. The next prime is 61055440117333. The reversal of 61055440117320 is 2371104455016.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23127059331 + ... + 23127061970.

It is an arithmetic number, because the mean of its divisors is an integer number (3122153187885).

Almost surely, 2^{61055440117320} is an apocalyptic number.

61055440117320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61055440117320 is an abundant number, since it is smaller than the sum of its proper divisors (138762363907320).

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

61055440117320 is a wasteful number, since it uses less digits than its factorization.

61055440117320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46254121326 (or 46254121322 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 61055440117320 in words is "sixty-one trillion, fifty-five billion, four hundred forty million, one hundred seventeen thousand, three hundred twenty".