51660585343830 has 32 divisors (see below), whose sum is σ = 123986204642304. Its totient is φ = 13776067223136.

The previous prime is 51660585343823. The next prime is 51660585343831. The reversal of 51660585343830 is 3834358506615.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51660585343831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 758374 + ... + 10192953.

It is an arithmetic number, because the mean of its divisors is an integer number (3874568895072).

Almost surely, 2^{51660585343830} is an apocalyptic number.

51660585343830 is an abundant number, since it is smaller than the sum of its proper divisors (72325619298474).

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

51660585343830 is a wasteful number, since it uses less digits than its factorization.

51660585343830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11108580.

The product of its (nonzero) digits is 31104000, while the sum is 57.

The spelling of 51660585343830 in words is "fifty-one trillion, six hundred sixty billion, five hundred eighty-five million, three hundred forty-three thousand, eight hundred thirty".