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55199075014980 = 2233513231033319171
BaseRepresentation
bin11001000110100000010010…
…10000100001100101000100
321020102222110110000222011000
430203100021100201211010
524213340201200434410
6313222034402213300
714425000352041041
oct1443201120414504
9236388413028130
1055199075014980
1116651883899916
126235b4a654230
1324a53342a25a0
14d8b9142901c8
1565acc44e0dc0
hex323409421944

55199075014980 has 384 divisors, whose sum is σ = 194855045898240. Its totient is φ = 12870519805440.

The previous prime is 55199075014901. The next prime is 55199075014981. The reversal of 55199075014980 is 8941057099155.

55199075014980 is a `hidden beast` number, since 5 + 5 + 1 + 9 + 9 + 0 + 7 + 501 + 49 + 80 = 666.

It is not an unprimeable number, because it can be changed into a prime (55199075014981) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 14970795 + ... + 18289965.

It is an arithmetic number, because the mean of its divisors is an integer number (507435015360).

Almost surely, 255199075014980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55199075014980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97427522949120).

55199075014980 is an abundant number, since it is smaller than the sum of its proper divisors (139655970883260).

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

55199075014980 is a wasteful number, since it uses less digits than its factorization.

55199075014980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3319328 (or 3319320 counting only the distinct ones).

The product of its (nonzero) digits is 20412000, while the sum is 63.

The spelling of 55199075014980 in words is "fifty-five trillion, one hundred ninety-nine billion, seventy-five million, fourteen thousand, nine hundred eighty".