50665655221072 has 40 divisors (see below), whose sum is σ = 103343921681760. Its totient is φ = 23996582559360.

The previous prime is 50665655221057. The next prime is 50665655221073. The reversal of 50665655221072 is 27012255656605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50665655221073) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7714483 + ... + 12682450.

It is an arithmetic number, because the mean of its divisors is an integer number (2583598042044).

Almost surely, 2^{50665655221072} is an apocalyptic number.

It is an amenable number.

50665655221072 is an abundant number, since it is smaller than the sum of its proper divisors (52678266460688).

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

50665655221072 is a wasteful number, since it uses less digits than its factorization.

50665655221072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20405131 (or 20405125 counting only the distinct ones).

The product of its (nonzero) digits is 7560000, while the sum is 52.

The spelling of 50665655221072 in words is "fifty trillion, six hundred sixty-five billion, six hundred fifty-five million, two hundred twenty-one thousand, seventy-two".