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55390124160 = 273357479743
BaseRepresentation
bin110011100101100000…
…100011100010000000
312021222020021211221000
4303211200203202000
51401414332433120
641240150332000
74000422200310
oct634540434200
9167866254830
1055390124160
1121544310118
12a89a05a000
1352b96929c7
142976545440
151692bad990
hexce5823880

55390124160 has 512 divisors, whose sum is σ = 228991795200. Its totient is φ = 12389953536.

The previous prime is 55390124147. The next prime is 55390124269. The reversal of 55390124160 is 6142109355.

55390124160 is a `hidden beast` number, since 553 + 9 + 0 + 1 + 2 + 41 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5680249 + ... + 5689991.

It is an arithmetic number, because the mean of its divisors is an integer number (447249600).

Almost surely, 255390124160 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 55390124160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114495897600).

55390124160 is an abundant number, since it is smaller than the sum of its proper divisors (173601671040).

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

55390124160 is a wasteful number, since it uses less digits than its factorization.

55390124160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9825 (or 9807 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 55390124160 in words is "fifty-five billion, three hundred ninety million, one hundred twenty-four thousand, one hundred sixty".