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55165716060 = 223572131975967
BaseRepresentation
bin110011011000001000…
…100000011001011100
312021101121000201212220
4303120020200121130
51400434410403220
641202012425340
73662025564300
oct633010403134
9167347021786
1055165716060
1121439676a84
12a836a78250
135282040a50
14295480bd00
15167d132540
hexcd822065c

55165716060 has 288 divisors, whose sum is σ = 203691479040. Its totient is φ = 11026616832.

The previous prime is 55165716049. The next prime is 55165716071. The reversal of 55165716060 is 6061756155.

It is an interprime number because it is at equal distance from previous prime (55165716049) and next prime (55165716071).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 688197 + ... + 764163.

It is an arithmetic number, because the mean of its divisors is an integer number (707262080).

Almost surely, 255165716060 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 55165716060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101845739520).

55165716060 is an abundant number, since it is smaller than the sum of its proper divisors (148525762980).

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

55165716060 is a wasteful number, since it uses less digits than its factorization.

55165716060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76025 (or 76016 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 42.

The spelling of 55165716060 in words is "fifty-five billion, one hundred sixty-five million, seven hundred sixteen thousand, sixty".