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68065116504 = 23371129734519
BaseRepresentation
bin111111011000111111…
…110100000101011000
320111200120112011200220
4333120333310011120
52103344132212004
651134011400040
74626500641620
oct773077640530
9214616464626
1068065116504
1126958a90500
1211236a53020
13655961c088
143419a6b880
151b85811dd9
hexfd8ff4158

68065116504 has 192 divisors, whose sum is σ = 215968166400. Its totient is φ = 17496483840.

The previous prime is 68065116503. The next prime is 68065116529. The reversal of 68065116504 is 40561156086.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68065116503) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1954557 + ... + 1989075.

It is an arithmetic number, because the mean of its divisors is an integer number (1124834200).

Almost surely, 268065116504 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 68065116504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107984083200).

68065116504 is an abundant number, since it is smaller than the sum of its proper divisors (147903049896).

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

68065116504 is a wasteful number, since it uses less digits than its factorization.

68065116504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34654 (or 34639 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 68065116504 in words is "sixty-eight billion, sixty-five million, one hundred sixteen thousand, five hundred four".